| August 2026 | 3.008 | Source estimate; revisable |
|---|
| July 2026 | 2.983 | Source estimate; revisable |
|---|
| June 2026 | 3.041 | Source estimate; revisable |
|---|
| May 2026 | 3.162 | Source estimate; revisable |
|---|
| April 2026 | 3.084 | Source estimate; revisable |
|---|
| March 2026 | 3.105 | Source estimate; revisable |
|---|
| February 2026 | 2.959 | Source estimate; revisable |
|---|
| January 2026 | 2.938 | Source estimate; revisable |
|---|
| December 2025 | 2.872 | Source estimate; revisable |
|---|
| November 2025 | 2.721 | Source estimate; revisable |
|---|
| October 2025 | 2.705 | Source estimate; revisable |
|---|
| September 2025 | 2.817 | Source estimate; revisable |
|---|
| August 2025 | 2.851 | Source estimate; revisable |
|---|
| July 2025 | 2.841 | Source estimate; revisable |
|---|
| June 2025 | 2.826 | Source estimate; revisable |
|---|
| May 2025 | 2.787 | Source estimate; revisable |
|---|
| April 2025 | 2.676 | Source estimate; revisable |
|---|
| March 2025 | 2.564 | Source estimate; revisable |
|---|
| February 2025 | 2.823 | Source estimate; revisable |
|---|
| January 2025 | 2.812 | Source estimate; revisable |
|---|
| December 2024 | 2.903 | Source estimate; revisable |
|---|
| November 2024 | 2.874 | Source estimate; revisable |
|---|
| October 2024 | 2.905 | Source estimate; revisable |
|---|
| September 2024 | 2.840 | Source estimate; revisable |
|---|
| August 2024 | 2.902 | Source estimate; revisable |
|---|
| July 2024 | 2.809 | Source estimate; revisable |
|---|
| June 2024 | 2.779 | Source estimate; revisable |
|---|
| May 2024 | 2.809 | Source estimate; revisable |
|---|
| April 2024 | 3.018 | Source estimate; revisable |
|---|
| March 2024 | 3.146 | Source estimate; revisable |
|---|
| February 2024 | 3.178 | Source estimate; revisable |
|---|
| January 2024 | 3.224 | Source estimate; revisable |
|---|
| December 2023 | 3.225 | Source estimate; revisable |
|---|
| November 2023 | 3.437 | Source estimate; revisable |
|---|
| October 2023 | 3.559 | Source estimate; revisable |
|---|
| September 2023 | 3.738 | Source estimate; revisable |
|---|
| August 2023 | 3.830 | Source estimate; revisable |
|---|
| July 2023 | 4.236 | Source estimate; revisable |
|---|
| June 2023 | 4.443 | Source estimate; revisable |
|---|
| May 2023 | 4.834 | Source estimate; revisable |
|---|
| April 2023 | 4.853 | Source estimate; revisable |
|---|
| March 2023 | 4.865 | Source estimate; revisable |
|---|
| February 2023 | 4.862 | Source estimate; revisable |
|---|
| January 2023 | 5.002 | Source estimate; revisable |
|---|
| December 2022 | 5.071 | Source estimate; revisable |
|---|
| November 2022 | 5.285 | Source estimate; revisable |
|---|
| October 2022 | 5.509 | Source estimate; revisable |
|---|
| September 2022 | 5.640 | Source estimate; revisable |
|---|
| August 2022 | 5.403 | Source estimate; revisable |
|---|
| July 2022 | 5.219 | Source estimate; revisable |
|---|
| June 2022 | 5.299 | Source estimate; revisable |
|---|
| May 2022 | 5.169 | Source estimate; revisable |
|---|
| April 2022 | 5.289 | Source estimate; revisable |
|---|
| March 2022 | 5.560 | Source estimate; revisable |
|---|
| February 2022 | 5.569 | Source estimate; revisable |
|---|
| January 2022 | 5.326 | Source estimate; revisable |
|---|
| December 2021 | 5.084 | Source estimate; revisable |
|---|
| November 2021 | 4.797 | Source estimate; revisable |
|---|
| October 2021 | 4.371 | Source estimate; revisable |
|---|
| September 2021 | 3.926 | Source estimate; revisable |
|---|
| August 2021 | 3.893 | Source estimate; revisable |
|---|
| July 2021 | 3.844 | Source estimate; revisable |
|---|
| June 2021 | 3.784 | Source estimate; revisable |
|---|
| May 2021 | 3.436 | Source estimate; revisable |
|---|
| April 2021 | 3.068 | Source estimate; revisable |
|---|
| March 2021 | 2.134 | Source estimate; revisable |
|---|
| February 2021 | 1.646 | Source estimate; revisable |
|---|
| January 2021 | 1.589 | Source estimate; revisable |
|---|
| December 2020 | 1.509 | Source estimate; revisable |
|---|
| November 2020 | 1.454 | Source estimate; revisable |
|---|
| October 2020 | 1.422 | Source estimate; revisable |
|---|
| September 2020 | 1.480 | Source estimate; revisable |
|---|
| August 2020 | 1.393 | Source estimate; revisable |
|---|
| July 2020 | 1.214 | Source estimate; revisable |
|---|
| June 2020 | 0.970 | Source estimate; revisable |
|---|
| May 2020 | 0.997 | Source estimate; revisable |
|---|
| April 2020 | 0.995 | Source estimate; revisable |
|---|
| March 2020 | 1.527 | Source estimate; revisable |
|---|
| February 2020 | 1.698 | Source estimate; revisable |
|---|
| January 2020 | 1.591 | Source estimate; revisable |
|---|
| December 2019 | 1.545 | Source estimate; revisable |
|---|
| November 2019 | 1.498 | Source estimate; revisable |
|---|
| October 2019 | 1.624 | Source estimate; revisable |
|---|
| September 2019 | 1.632 | Source estimate; revisable |
|---|
| August 2019 | 1.746 | Source estimate; revisable |
|---|
| July 2019 | 1.639 | Source estimate; revisable |
|---|
| June 2019 | 1.657 | Source estimate; revisable |
|---|
| May 2019 | 1.563 | Source estimate; revisable |
|---|
| April 2019 | 1.637 | Source estimate; revisable |
|---|
| March 2019 | 1.616 | Source estimate; revisable |
|---|
| February 2019 | 1.744 | Source estimate; revisable |
|---|
| January 2019 | 1.844 | Source estimate; revisable |
|---|
| December 2018 | 2.038 | Source estimate; revisable |
|---|
| November 2018 | 2.010 | Source estimate; revisable |
|---|
| October 2018 | 1.871 | Source estimate; revisable |
|---|
| September 2018 | 1.960 | Source estimate; revisable |
|---|
| August 2018 | 1.896 | Source estimate; revisable |
|---|
| July 2018 | 1.996 | Source estimate; revisable |
|---|
| June 2018 | 1.936 | Source estimate; revisable |
|---|
| May 2018 | 1.981 | Source estimate; revisable |
|---|
| April 2018 | 1.884 | Source estimate; revisable |
|---|
| March 2018 | 1.909 | Source estimate; revisable |
|---|
| February 2018 | 1.644 | Source estimate; revisable |
|---|
| January 2018 | 1.632 | Source estimate; revisable |
|---|
| December 2017 | 1.577 | Source estimate; revisable |
|---|
| November 2017 | 1.545 | Source estimate; revisable |
|---|
| October 2017 | 1.541 | Source estimate; revisable |
|---|
| September 2017 | 1.423 | Source estimate; revisable |
|---|
| August 2017 | 1.434 | Source estimate; revisable |
|---|
| July 2017 | 1.503 | Source estimate; revisable |
|---|
| June 2017 | 1.576 | Source estimate; revisable |
|---|
| May 2017 | 1.546 | Source estimate; revisable |
|---|
| April 2017 | 1.637 | Source estimate; revisable |
|---|
| March 2017 | 1.679 | Source estimate; revisable |
|---|
| February 2017 | 1.867 | Source estimate; revisable |
|---|
| January 2017 | 1.863 | Source estimate; revisable |
|---|
| December 2016 | 1.770 | Source estimate; revisable |
|---|
| November 2016 | 1.719 | Source estimate; revisable |
|---|
| October 2016 | 1.782 | Source estimate; revisable |
|---|
| September 2016 | 1.685 | Source estimate; revisable |
|---|
| August 2016 | 1.697 | Source estimate; revisable |
|---|
| July 2016 | 1.599 | Source estimate; revisable |
|---|
| June 2016 | 1.552 | Source estimate; revisable |
|---|
| May 2016 | 1.569 | Source estimate; revisable |
|---|
| April 2016 | 1.520 | Source estimate; revisable |
|---|
| March 2016 | 1.457 | Source estimate; revisable |
|---|
| February 2016 | 1.466 | Source estimate; revisable |
|---|
| January 2016 | 1.406 | Source estimate; revisable |
|---|
| December 2015 | 1.192 | Source estimate; revisable |
|---|
| November 2015 | 1.197 | Source estimate; revisable |
|---|
| October 2015 | 1.178 | Source estimate; revisable |
|---|
| September 2015 | 1.232 | Source estimate; revisable |
|---|
| August 2015 | 1.221 | Source estimate; revisable |
|---|
| July 2015 | 1.179 | Source estimate; revisable |
|---|
| June 2015 | 1.254 | Source estimate; revisable |
|---|
| May 2015 | 1.247 | Source estimate; revisable |
|---|
| April 2015 | 1.294 | Source estimate; revisable |
|---|
| March 2015 | 1.281 | Source estimate; revisable |
|---|
| February 2015 | 1.277 | Source estimate; revisable |
|---|
| January 2015 | 1.210 | Source estimate; revisable |
|---|
| December 2014 | 1.356 | Source estimate; revisable |
|---|
| November 2014 | 1.393 | Source estimate; revisable |
|---|
| October 2014 | 1.471 | Source estimate; revisable |
|---|
| September 2014 | 1.555 | Source estimate; revisable |
|---|
| August 2014 | 1.540 | Source estimate; revisable |
|---|
| July 2014 | 1.610 | Source estimate; revisable |
|---|
| June 2014 | 1.564 | Source estimate; revisable |
|---|
| May 2014 | 1.624 | Source estimate; revisable |
|---|
| April 2014 | 1.571 | Source estimate; revisable |
|---|
| March 2014 | 1.447 | Source estimate; revisable |
|---|
| February 2014 | 1.390 | Source estimate; revisable |
|---|
| January 2014 | 1.452 | Source estimate; revisable |
|---|
| December 2013 | 1.547 | Source estimate; revisable |
|---|
| November 2013 | 1.514 | Source estimate; revisable |
|---|
| October 2013 | 1.455 | Source estimate; revisable |
|---|
| September 2013 | 1.529 | Source estimate; revisable |
|---|
| August 2013 | 1.533 | Source estimate; revisable |
|---|
| July 2013 | 1.488 | Source estimate; revisable |
|---|
| June 2013 | 1.464 | Source estimate; revisable |
|---|
| May 2013 | 1.393 | Source estimate; revisable |
|---|
| April 2013 | 1.377 | Source estimate; revisable |
|---|
| March 2013 | 1.481 | Source estimate; revisable |
|---|
| February 2013 | 1.560 | Source estimate; revisable |
|---|
| January 2013 | 1.592 | Source estimate; revisable |
|---|
| December 2012 | 1.690 | Source estimate; revisable |
|---|
| November 2012 | 1.783 | Source estimate; revisable |
|---|
| October 2012 | 1.889 | Source estimate; revisable |
|---|
| September 2012 | 1.692 | Source estimate; revisable |
|---|
| August 2012 | 1.636 | Source estimate; revisable |
|---|
| July 2012 | 1.774 | Source estimate; revisable |
|---|
| June 2012 | 1.819 | Source estimate; revisable |
|---|
| May 2012 | 1.827 | Source estimate; revisable |
|---|
| April 2012 | 1.965 | Source estimate; revisable |
|---|
| March 2012 | 2.045 | Source estimate; revisable |
|---|
| February 2012 | 2.026 | Source estimate; revisable |
|---|
| January 2012 | 2.061 | Source estimate; revisable |
|---|
| December 2011 | 1.975 | Source estimate; revisable |
|---|
| November 2011 | 1.828 | Source estimate; revisable |
|---|
| October 2011 | 1.745 | Source estimate; revisable |
|---|
| September 2011 | 1.851 | Source estimate; revisable |
|---|
| August 2011 | 1.840 | Source estimate; revisable |
|---|
| July 2011 | 1.734 | Source estimate; revisable |
|---|
| June 2011 | 1.586 | Source estimate; revisable |
|---|
| May 2011 | 1.524 | Source estimate; revisable |
|---|
| April 2011 | 1.395 | Source estimate; revisable |
|---|
| March 2011 | 1.215 | Source estimate; revisable |
|---|
| February 2011 | 1.212 | Source estimate; revisable |
|---|
| January 2011 | 1.123 | Source estimate; revisable |
|---|
| December 2010 | 1.057 | Source estimate; revisable |
|---|
| November 2010 | 1.122 | Source estimate; revisable |
|---|
| October 2010 | 1.079 | Source estimate; revisable |
|---|
| September 2010 | 1.297 | Source estimate; revisable |
|---|
| August 2010 | 1.418 | Source estimate; revisable |
|---|
| July 2010 | 1.471 | Source estimate; revisable |
|---|
| June 2010 | 1.556 | Source estimate; revisable |
|---|
| May 2010 | 1.637 | Source estimate; revisable |
|---|
| April 2010 | 1.603 | Source estimate; revisable |
|---|
| March 2010 | 1.777 | Source estimate; revisable |
|---|
| February 2010 | 1.699 | Source estimate; revisable |
|---|
| January 2010 | 1.691 | Source estimate; revisable |
|---|
| December 2009 | 1.510 | Source estimate; revisable |
|---|
| November 2009 | 1.373 | Source estimate; revisable |
|---|
| October 2009 | 1.240 | Source estimate; revisable |
|---|
| September 2009 | 0.725 | Source estimate; revisable |
|---|
| August 2009 | 0.651 | Source estimate; revisable |
|---|
| July 2009 | 0.626 | Source estimate; revisable |
|---|
| June 2009 | 0.720 | Source estimate; revisable |
|---|
| May 2009 | 0.822 | Source estimate; revisable |
|---|
| April 2009 | 0.928 | Source estimate; revisable |
|---|
| March 2009 | 0.762 | Source estimate; revisable |
|---|
| February 2009 | 0.888 | Source estimate; revisable |
|---|
| January 2009 | 0.906 | Source estimate; revisable |
|---|
| December 2008 | 1.138 | Source estimate; revisable |
|---|
| November 2008 | 1.390 | Source estimate; revisable |
|---|
| October 2008 | 1.634 | Source estimate; revisable |
|---|
| September 2008 | 2.044 | Source estimate; revisable |
|---|
| August 2008 | 2.218 | Source estimate; revisable |
|---|
| July 2008 | 2.244 | Source estimate; revisable |
|---|
| June 2008 | 2.214 | Source estimate; revisable |
|---|
| May 2008 | 2.149 | Source estimate; revisable |
|---|
| April 2008 | 2.084 | Source estimate; revisable |
|---|
| March 2008 | 2.170 | Source estimate; revisable |
|---|
| February 2008 | 2.072 | Source estimate; revisable |
|---|
| January 2008 | 2.193 | Source estimate; revisable |
|---|
| December 2007 | 2.403 | Source estimate; revisable |
|---|
| November 2007 | 2.336 | Source estimate; revisable |
|---|
| October 2007 | 2.184 | Source estimate; revisable |
|---|
| September 2007 | 2.102 | Source estimate; revisable |
|---|
| August 2007 | 1.985 | Source estimate; revisable |
|---|
| July 2007 | 2.041 | Source estimate; revisable |
|---|
| June 2007 | 1.987 | Source estimate; revisable |
|---|
| May 2007 | 2.076 | Source estimate; revisable |
|---|
| April 2007 | 2.211 | Source estimate; revisable |
|---|
| March 2007 | 2.377 | Source estimate; revisable |
|---|
| February 2007 | 2.556 | Source estimate; revisable |
|---|
| January 2007 | 2.500 | Source estimate; revisable |
|---|
| December 2006 | 2.316 | Source estimate; revisable |
|---|
| November 2006 | 2.284 | Source estimate; revisable |
|---|
| October 2006 | 2.497 | Source estimate; revisable |
|---|
| September 2006 | 2.606 | Source estimate; revisable |
|---|
| August 2006 | 2.671 | Source estimate; revisable |
|---|
| July 2006 | 2.546 | Source estimate; revisable |
|---|
| June 2006 | 2.596 | Source estimate; revisable |
|---|
| May 2006 | 2.409 | Source estimate; revisable |
|---|
| April 2006 | 2.362 | Source estimate; revisable |
|---|
| March 2006 | 2.168 | Source estimate; revisable |
|---|
| February 2006 | 2.138 | Source estimate; revisable |
|---|
| January 2006 | 2.142 | Source estimate; revisable |
|---|
| December 2005 | 2.281 | Source estimate; revisable |
|---|
| November 2005 | 2.306 | Source estimate; revisable |
|---|
| October 2005 | 2.265 | Source estimate; revisable |
|---|
| September 2005 | 2.193 | Source estimate; revisable |
|---|
| August 2005 | 2.159 | Source estimate; revisable |
|---|
| July 2005 | 2.115 | Source estimate; revisable |
|---|
| June 2005 | 2.086 | Source estimate; revisable |
|---|
| May 2005 | 2.177 | Source estimate; revisable |
|---|
| April 2005 | 2.108 | Source estimate; revisable |
|---|
| March 2005 | 2.256 | Source estimate; revisable |
|---|
| February 2005 | 2.175 | Source estimate; revisable |
|---|
| January 2005 | 2.171 | Source estimate; revisable |
|---|
| December 2004 | 2.066 | Source estimate; revisable |
|---|
| November 2004 | 2.063 | Source estimate; revisable |
|---|
| October 2004 | 1.982 | Source estimate; revisable |
|---|
| September 2004 | 1.949 | Source estimate; revisable |
|---|
| August 2004 | 1.900 | Source estimate; revisable |
|---|
| July 2004 | 1.976 | Source estimate; revisable |
|---|
| June 2004 | 2.110 | Source estimate; revisable |
|---|
| May 2004 | 2.006 | Source estimate; revisable |
|---|
| April 2004 | 2.012 | Source estimate; revisable |
|---|
| March 2004 | 1.860 | Source estimate; revisable |
|---|
| February 2004 | 1.853 | Source estimate; revisable |
|---|
| January 2004 | 1.829 | Source estimate; revisable |
|---|
| December 2003 | 1.637 | Source estimate; revisable |
|---|
| November 2003 | 1.605 | Source estimate; revisable |
|---|
| October 2003 | 1.566 | Source estimate; revisable |
|---|
| September 2003 | 1.465 | Source estimate; revisable |
|---|
| August 2003 | 1.489 | Source estimate; revisable |
|---|
| July 2003 | 1.574 | Source estimate; revisable |
|---|
| June 2003 | 1.527 | Source estimate; revisable |
|---|
| May 2003 | 1.632 | Source estimate; revisable |
|---|
| April 2003 | 1.598 | Source estimate; revisable |
|---|
| March 2003 | 1.769 | Source estimate; revisable |
|---|
| February 2003 | 1.727 | Source estimate; revisable |
|---|
| January 2003 | 1.781 | Source estimate; revisable |
|---|
| December 2002 | 1.769 | Source estimate; revisable |
|---|
| November 2002 | 1.698 | Source estimate; revisable |
|---|
| October 2002 | 1.806 | Source estimate; revisable |
|---|
| September 2002 | 2.436 | Source estimate; revisable |
|---|
| August 2002 | 1.688 | Source estimate; revisable |
|---|
| July 2002 | 1.538 | Source estimate; revisable |
|---|
| June 2002 | 1.593 | Source estimate; revisable |
|---|
| May 2002 | 1.659 | Source estimate; revisable |
|---|
| April 2002 | 1.570 | Source estimate; revisable |
|---|
| March 2002 | 1.449 | Source estimate; revisable |
|---|
| February 2002 | 1.433 | Source estimate; revisable |
|---|
| January 2002 | 1.418 | Source estimate; revisable |
|---|
| December 2001 | 1.739 | Source estimate; revisable |
|---|
| November 2001 | 1.815 | Source estimate; revisable |
|---|
| October 2001 | 1.787 | Source estimate; revisable |
|---|
| September 2001 | 1.217 | Source estimate; revisable |
|---|
| August 2001 | 2.042 | Source estimate; revisable |
|---|
| July 2001 | 2.122 | Source estimate; revisable |
|---|
| June 2001 | 2.092 | Source estimate; revisable |
|---|
| May 2001 | 1.943 | Source estimate; revisable |
|---|
| April 2001 | 2.028 | Source estimate; revisable |
|---|
| March 2001 | 1.932 | Source estimate; revisable |
|---|
| February 2001 | 2.036 | Source estimate; revisable |
|---|
| January 2001 | 2.005 | Source estimate; revisable |
|---|
| December 2000 | 1.871 | Source estimate; revisable |
|---|
| November 2000 | 1.900 | Source estimate; revisable |
|---|
| October 2000 | 1.818 | Source estimate; revisable |
|---|
| September 2000 | 1.850 | Source estimate; revisable |
|---|
| August 2000 | 1.873 | Source estimate; revisable |
|---|
| July 2000 | 1.792 | Source estimate; revisable |
|---|
| June 2000 | 1.742 | Source estimate; revisable |
|---|
| May 2000 | 1.719 | Source estimate; revisable |
|---|
| April 2000 | 1.707 | Source estimate; revisable |
|---|
| March 2000 | 1.901 | Source estimate; revisable |
|---|
| February 2000 | 1.722 | Source estimate; revisable |
|---|
| January 2000 | 1.539 | Source estimate; revisable |
|---|
| December 1999 | 1.440 | Source estimate; revisable |
|---|
| November 1999 | 1.486 | Source estimate; revisable |
|---|
| October 1999 | 1.407 | Source estimate; revisable |
|---|
| September 1999 | 1.431 | Source estimate; revisable |
|---|
| August 1999 | 1.147 | Source estimate; revisable |
|---|
| July 1999 | 1.295 | Source estimate; revisable |
|---|
| June 1999 | 1.398 | Source estimate; revisable |
|---|
| May 1999 | 1.217 | Source estimate; revisable |
|---|
| April 1999 | 1.218 | Source estimate; revisable |
|---|
| March 1999 | 1.144 | Source estimate; revisable |
|---|
| February 1999 | 1.222 | Source estimate; revisable |
|---|
| January 1999 | 1.343 | Source estimate; revisable |
|---|
| December 1998 | 1.354 | Source estimate; revisable |
|---|
| November 1998 | 1.238 | Source estimate; revisable |
|---|
| October 1998 | 1.251 | Source estimate; revisable |
|---|
| September 1998 | 1.207 | Source estimate; revisable |
|---|
| August 1998 | 1.434 | Source estimate; revisable |
|---|
| July 1998 | 1.195 | Source estimate; revisable |
|---|
| June 1998 | 0.980 | Source estimate; revisable |
|---|
| May 1998 | 1.256 | Source estimate; revisable |
|---|
| April 1998 | 1.232 | Source estimate; revisable |
|---|
| March 1998 | 1.244 | Source estimate; revisable |
|---|
| February 1998 | 1.377 | Source estimate; revisable |
|---|
| January 1998 | 1.498 | Source estimate; revisable |
|---|
| December 1997 | 1.452 | Source estimate; revisable |
|---|
| November 1997 | 1.432 | Source estimate; revisable |
|---|
| October 1997 | 1.534 | Source estimate; revisable |
|---|
| September 1997 | 1.621 | Source estimate; revisable |
|---|
| August 1997 | 1.718 | Source estimate; revisable |
|---|
| July 1997 | 1.847 | Source estimate; revisable |
|---|
| June 1997 | 1.968 | Source estimate; revisable |
|---|
| May 1997 | 1.896 | Source estimate; revisable |
|---|
| April 1997 | 1.999 | Source estimate; revisable |
|---|
| March 1997 | 1.937 | Source estimate; revisable |
|---|
| February 1997 | 1.930 | Source estimate; revisable |
|---|
| January 1997 | 1.854 | Source estimate; revisable |
|---|
| December 1996 | 1.860 | Source estimate; revisable |
|---|
| November 1996 | 1.965 | Source estimate; revisable |
|---|
| October 1996 | 1.897 | Source estimate; revisable |
|---|
| September 1996 | 1.903 | Source estimate; revisable |
|---|
| August 1996 | 1.728 | Source estimate; revisable |
|---|
| July 1996 | 1.884 | Source estimate; revisable |
|---|
| June 1996 | 1.854 | Source estimate; revisable |
|---|
| May 1996 | 1.864 | Source estimate; revisable |
|---|
| April 1996 | 1.860 | Source estimate; revisable |
|---|
| March 1996 | 1.959 | Source estimate; revisable |
|---|
| February 1996 | 1.973 | Source estimate; revisable |
|---|
| January 1996 | 2.007 | Source estimate; revisable |
|---|
| December 1995 | 2.145 | Source estimate; revisable |
|---|
| November 1995 | 2.036 | Source estimate; revisable |
|---|
| October 1995 | 2.157 | Source estimate; revisable |
|---|
| September 1995 | 2.149 | Source estimate; revisable |
|---|
| August 1995 | 2.170 | Source estimate; revisable |
|---|
| July 1995 | 2.039 | Source estimate; revisable |
|---|
| June 1995 | 2.092 | Source estimate; revisable |
|---|
| May 1995 | 2.230 | Source estimate; revisable |
|---|
| April 1995 | 2.284 | Source estimate; revisable |
|---|
| March 1995 | 2.200 | Source estimate; revisable |
|---|
| February 1995 | 2.297 | Source estimate; revisable |
|---|
| January 1995 | 2.351 | Source estimate; revisable |
|---|
| December 1994 | 2.178 | Source estimate; revisable |
|---|
| November 1994 | 2.189 | Source estimate; revisable |
|---|
| October 1994 | 2.266 | Source estimate; revisable |
|---|
| September 1994 | 2.193 | Source estimate; revisable |
|---|
| August 1994 | 2.192 | Source estimate; revisable |
|---|
| July 1994 | 2.268 | Source estimate; revisable |
|---|
| June 1994 | 2.265 | Source estimate; revisable |
|---|
| May 1994 | 2.136 | Source estimate; revisable |
|---|
| April 1994 | 2.254 | Source estimate; revisable |
|---|
| March 1994 | 2.397 | Source estimate; revisable |
|---|
| February 1994 | 2.273 | Source estimate; revisable |
|---|
| January 1994 | 2.247 | Source estimate; revisable |
|---|
| December 1993 | 2.463 | Source estimate; revisable |
|---|
| November 1993 | 2.607 | Source estimate; revisable |
|---|
| October 1993 | 2.567 | Source estimate; revisable |
|---|
| September 1993 | 2.793 | Source estimate; revisable |
|---|
| August 1993 | 2.805 | Source estimate; revisable |
|---|
| July 1993 | 2.707 | Source estimate; revisable |
|---|
| June 1993 | 2.882 | Source estimate; revisable |
|---|
| May 1993 | 2.864 | Source estimate; revisable |
|---|
| April 1993 | 2.661 | Source estimate; revisable |
|---|
| March 1993 | 2.700 | Source estimate; revisable |
|---|
| February 1993 | 2.731 | Source estimate; revisable |
|---|
| January 1993 | 2.814 | Source estimate; revisable |
|---|
| December 1992 | 2.795 | Source estimate; revisable |
|---|
| November 1992 | 2.857 | Source estimate; revisable |
|---|
| October 1992 | 2.825 | Source estimate; revisable |
|---|
| September 1992 | 2.656 | Source estimate; revisable |
|---|
| August 1992 | 2.899 | Source estimate; revisable |
|---|
| July 1992 | 3.088 | Source estimate; revisable |
|---|
| June 1992 | 3.012 | Source estimate; revisable |
|---|
| May 1992 | 3.155 | Source estimate; revisable |
|---|
| April 1992 | 3.421 | Source estimate; revisable |
|---|
| March 1992 | 3.289 | Source estimate; revisable |
|---|
| February 1992 | 3.247 | Source estimate; revisable |
|---|
| January 1992 | 3.251 | Source estimate; revisable |
|---|
| December 1991 | 3.484 | Source estimate; revisable |
|---|
| November 1991 | 3.373 | Source estimate; revisable |
|---|
| October 1991 | 3.305 | Source estimate; revisable |
|---|
| September 1991 | 3.428 | Source estimate; revisable |
|---|
| August 1991 | 3.376 | Source estimate; revisable |
|---|
| July 1991 | 3.522 | Source estimate; revisable |
|---|
| June 1991 | 3.468 | Source estimate; revisable |
|---|
| May 1991 | 3.646 | Source estimate; revisable |
|---|
| April 1991 | 3.551 | Source estimate; revisable |
|---|
| March 1991 | 3.652 | Source estimate; revisable |
|---|
| February 1991 | 3.933 | Source estimate; revisable |
|---|
| January 1991 | 4.150 | Source estimate; revisable |
|---|
| December 1990 | 4.032 | Source estimate; revisable |
|---|
| November 1990 | 4.183 | Source estimate; revisable |
|---|
| October 1990 | 4.334 | Source estimate; revisable |
|---|
| September 1990 | 4.358 | Source estimate; revisable |
|---|
| August 1990 | 4.356 | Source estimate; revisable |
|---|
| July 1990 | 4.068 | Source estimate; revisable |
|---|
| June 1990 | 4.073 | Source estimate; revisable |
|---|
| May 1990 | 3.946 | Source estimate; revisable |
|---|
| April 1990 | 3.939 | Source estimate; revisable |
|---|
| March 1990 | 3.978 | Source estimate; revisable |
|---|
| February 1990 | 3.789 | Source estimate; revisable |
|---|
| January 1990 | 3.550 | Source estimate; revisable |
|---|
| December 1989 | 3.675 | Source estimate; revisable |
|---|
| November 1989 | 3.725 | Source estimate; revisable |
|---|
| October 1989 | 3.733 | Source estimate; revisable |
|---|
| September 1989 | 3.751 | Source estimate; revisable |
|---|
| August 1989 | 3.946 | Source estimate; revisable |
|---|
| July 1989 | 4.060 | Source estimate; revisable |
|---|
| June 1989 | 4.216 | Source estimate; revisable |
|---|
| May 1989 | 4.379 | Source estimate; revisable |
|---|
| April 1989 | 4.422 | Source estimate; revisable |
|---|
| March 1989 | 4.579 | Source estimate; revisable |
|---|
| February 1989 | 4.713 | Source estimate; revisable |
|---|
| January 1989 | 4.662 | Source estimate; revisable |
|---|
| December 1988 | 4.628 | Source estimate; revisable |
|---|
| November 1988 | 4.501 | Source estimate; revisable |
|---|
| October 1988 | 4.433 | Source estimate; revisable |
|---|
| September 1988 | 4.481 | Source estimate; revisable |
|---|
| August 1988 | 4.337 | Source estimate; revisable |
|---|
| July 1988 | 4.430 | Source estimate; revisable |
|---|
| June 1988 | 4.275 | Source estimate; revisable |
|---|
| May 1988 | 4.121 | Source estimate; revisable |
|---|
| April 1988 | 4.059 | Source estimate; revisable |
|---|
| March 1988 | 3.995 | Source estimate; revisable |
|---|
| February 1988 | 3.859 | Source estimate; revisable |
|---|
| January 1988 | 3.857 | Source estimate; revisable |
|---|
| December 1987 | 3.617 | Source estimate; revisable |
|---|
| November 1987 | 3.534 | Source estimate; revisable |
|---|
| October 1987 | 3.537 | Source estimate; revisable |
|---|
| September 1987 | 3.447 | Source estimate; revisable |
|---|
| August 1987 | 3.378 | Source estimate; revisable |
|---|
| July 1987 | 3.240 | Source estimate; revisable |
|---|
| June 1987 | 3.161 | Source estimate; revisable |
|---|
| May 1987 | 3.188 | Source estimate; revisable |
|---|
| April 1987 | 3.075 | Source estimate; revisable |
|---|
| March 1987 | 2.826 | Source estimate; revisable |
|---|
| February 1987 | 2.834 | Source estimate; revisable |
|---|
| January 1987 | 2.890 | Source estimate; revisable |
|---|
| December 1986 | 3.197 | Source estimate; revisable |
|---|
| November 1986 | 3.344 | Source estimate; revisable |
|---|
| October 1986 | 3.378 | Source estimate; revisable |
|---|
| September 1986 | 3.193 | Source estimate; revisable |
|---|
| August 1986 | 3.067 | Source estimate; revisable |
|---|
| July 1986 | 3.361 | Source estimate; revisable |
|---|
| June 1986 | 3.475 | Source estimate; revisable |
|---|
| May 1986 | 3.506 | Source estimate; revisable |
|---|
| April 1986 | 3.686 | Source estimate; revisable |
|---|
| March 1986 | 3.621 | Source estimate; revisable |
|---|
| February 1986 | 3.669 | Source estimate; revisable |
|---|
| January 1986 | 3.938 | Source estimate; revisable |
|---|
| December 1985 | 3.960 | Source estimate; revisable |
|---|
| November 1985 | 4.088 | Source estimate; revisable |
|---|
| October 1985 | 4.054 | Source estimate; revisable |
|---|
| September 1985 | 4.121 | Source estimate; revisable |
|---|
| August 1985 | 4.065 | Source estimate; revisable |
|---|
| July 1985 | 3.898 | Source estimate; revisable |
|---|
| June 1985 | 4.042 | Source estimate; revisable |
|---|
| May 1985 | 3.943 | Source estimate; revisable |
|---|
| April 1985 | 3.827 | Source estimate; revisable |
|---|
| March 1985 | 4.191 | Source estimate; revisable |
|---|
| February 1985 | 4.222 | Source estimate; revisable |
|---|
| January 1985 | 4.338 | Source estimate; revisable |
|---|
| December 1984 | 4.101 | Source estimate; revisable |
|---|
| November 1984 | 3.767 | Source estimate; revisable |
|---|
| October 1984 | 3.789 | Source estimate; revisable |
|---|
| September 1984 | 3.740 | Source estimate; revisable |
|---|
| August 1984 | 4.000 | Source estimate; revisable |
|---|
| July 1984 | 4.193 | Source estimate; revisable |
|---|
| June 1984 | 4.446 | Source estimate; revisable |
|---|
| May 1984 | 4.687 | Source estimate; revisable |
|---|
| April 1984 | 4.595 | Source estimate; revisable |
|---|
| March 1984 | 4.421 | Source estimate; revisable |
|---|
| February 1984 | 4.158 | Source estimate; revisable |
|---|
| January 1984 | 3.889 | Source estimate; revisable |
|---|
| December 1983 | 4.253 | Source estimate; revisable |
|---|
| November 1983 | 4.507 | Source estimate; revisable |
|---|
| October 1983 | 4.649 | Source estimate; revisable |
|---|
| September 1983 | 5.126 | Source estimate; revisable |
|---|
| August 1983 | 5.091 | Source estimate; revisable |
|---|
| July 1983 | 5.033 | Source estimate; revisable |
|---|
| June 1983 | 5.006 | Source estimate; revisable |
|---|
| May 1983 | 5.043 | Source estimate; revisable |
|---|
| April 1983 | 5.462 | Source estimate; revisable |
|---|
| March 1983 | 5.560 | Source estimate; revisable |
|---|
| February 1983 | 5.887 | Source estimate; revisable |
|---|
| January 1983 | 5.903 | Source estimate; revisable |
|---|
| December 1982 | 5.828 | Source estimate; revisable |
|---|
| November 1982 | 5.883 | Source estimate; revisable |
|---|
| October 1982 | 6.109 | Source estimate; revisable |
|---|
| September 1982 | 6.069 | Source estimate; revisable |
|---|
| August 1982 | 6.371 | Source estimate; revisable |
|---|
| July 1982 | 6.593 | Source estimate; revisable |
|---|
| June 1982 | 6.545 | Source estimate; revisable |
|---|
| May 1982 | 6.541 | Source estimate; revisable |
|---|
| April 1982 | 6.694 | Source estimate; revisable |
|---|
| March 1982 | 6.952 | Source estimate; revisable |
|---|
| February 1982 | 7.078 | Source estimate; revisable |
|---|
| January 1982 | 7.446 | Source estimate; revisable |
|---|
| December 1981 | 7.718 | Source estimate; revisable |
|---|
| November 1981 | 7.965 | Source estimate; revisable |
|---|
| October 1981 | 8.185 | Source estimate; revisable |
|---|
| September 1981 | 8.428 | Source estimate; revisable |
|---|
| August 1981 | 8.737 | Source estimate; revisable |
|---|
| July 1981 | 8.795 | Source estimate; revisable |
|---|
| June 1981 | 8.902 | Source estimate; revisable |
|---|
| May 1981 | 9.081 | Source estimate; revisable |
|---|
| April 1981 | 9.208 | Source estimate; revisable |
|---|
| March 1981 | 9.072 | Source estimate; revisable |
|---|
| February 1981 | 9.475 | Source estimate; revisable |
|---|
| January 1981 | 9.765 | Source estimate; revisable |
|---|
| December 1980 | 9.647 | Source estimate; revisable |
|---|
| November 1980 | 9.775 | Source estimate; revisable |
|---|
| October 1980 | 9.613 | Source estimate; revisable |
|---|
| September 1980 | 9.513 | Source estimate; revisable |
|---|
| August 1980 | 9.230 | Source estimate; revisable |
|---|
| July 1980 | 9.165 | Source estimate; revisable |
|---|
| June 1980 | 8.948 | Source estimate; revisable |
|---|
| May 1980 | 8.836 | Source estimate; revisable |
|---|
| April 1980 | 8.904 | Source estimate; revisable |
|---|
| March 1980 | 9.350 | Source estimate; revisable |
|---|
| February 1980 | 8.966 | Source estimate; revisable |
|---|
| January 1980 | 8.245 | Source estimate; revisable |
|---|
| December 1979 | 7.978 | Source estimate; revisable |
|---|
| November 1979 | 7.624 | Source estimate; revisable |
|---|
| October 1979 | 7.517 | Source estimate; revisable |
|---|
| September 1979 | 7.521 | Source estimate; revisable |
|---|
| August 1979 | 7.408 | Source estimate; revisable |
|---|
| July 1979 | 7.272 | Source estimate; revisable |
|---|
| June 1979 | 7.364 | Source estimate; revisable |
|---|
| May 1979 | 7.362 | Source estimate; revisable |
|---|
| April 1979 | 7.063 | Source estimate; revisable |
|---|
| March 1979 | 6.768 | Source estimate; revisable |
|---|
| February 1979 | 6.735 | Source estimate; revisable |
|---|
| January 1979 | 6.796 | Source estimate; revisable |
|---|
| December 1978 | 6.888 | Source estimate; revisable |
|---|
| November 1978 | 7.024 | Source estimate; revisable |
|---|
| October 1978 | 7.002 | Source estimate; revisable |
|---|
| September 1978 | 6.736 | Source estimate; revisable |
|---|
| August 1978 | 6.572 | Source estimate; revisable |
|---|
| July 1978 | 6.526 | Source estimate; revisable |
|---|
| June 1978 | 6.556 | Source estimate; revisable |
|---|
| May 1978 | 6.599 | Source estimate; revisable |
|---|
| April 1978 | 6.516 | Source estimate; revisable |
|---|
| March 1978 | 6.353 | Source estimate; revisable |
|---|
| February 1978 | 6.229 | Source estimate; revisable |
|---|
| January 1978 | 6.470 | Source estimate; revisable |
|---|
| December 1977 | 6.482 | Source estimate; revisable |
|---|
| November 1977 | 6.511 | Source estimate; revisable |
|---|
| October 1977 | 6.444 | Source estimate; revisable |
|---|
| September 1977 | 6.451 | Source estimate; revisable |
|---|
| August 1977 | 6.625 | Source estimate; revisable |
|---|
| July 1977 | 6.715 | Source estimate; revisable |
|---|
| June 1977 | 6.643 | Source estimate; revisable |
|---|
| May 1977 | 6.440 | Source estimate; revisable |
|---|
| April 1977 | 6.400 | Source estimate; revisable |
|---|
| March 1977 | 6.293 | Source estimate; revisable |
|---|
| February 1977 | 6.192 | Source estimate; revisable |
|---|
| January 1977 | 5.965 | Source estimate; revisable |
|---|
| December 1976 | 5.862 | Source estimate; revisable |
|---|
| November 1976 | 5.931 | Source estimate; revisable |
|---|
| October 1976 | 6.149 | Source estimate; revisable |
|---|
| September 1976 | 6.158 | Source estimate; revisable |
|---|
| August 1976 | 6.114 | Source estimate; revisable |
|---|
| July 1976 | 5.868 | Source estimate; revisable |
|---|
| June 1976 | 5.937 | Source estimate; revisable |
|---|
| May 1976 | 6.023 | Source estimate; revisable |
|---|
| April 1976 | 5.973 | Source estimate; revisable |
|---|
| March 1976 | 6.074 | Source estimate; revisable |
|---|
| February 1976 | 6.277 | Source estimate; revisable |
|---|
| January 1976 | 6.604 | Source estimate; revisable |
|---|
| December 1975 | 6.677 | Source estimate; revisable |
|---|
| November 1975 | 6.783 | Source estimate; revisable |
|---|
| October 1975 | 6.856 | Source estimate; revisable |
|---|
| September 1975 | 7.157 | Source estimate; revisable |
|---|
| August 1975 | 7.536 | Source estimate; revisable |
|---|
| July 1975 | 8.198 | Source estimate; revisable |
|---|
| June 1975 | 8.489 | Source estimate; revisable |
|---|
| May 1975 | 9.070 | Source estimate; revisable |
|---|
| April 1975 | 9.653 | Source estimate; revisable |
|---|
| March 1975 | 9.937 | Source estimate; revisable |
|---|
| February 1975 | 10.220 | Source estimate; revisable |
|---|
| January 1975 | 10.142 | Source estimate; revisable |
|---|
| December 1974 | 10.043 | Source estimate; revisable |
|---|
| November 1974 | 9.877 | Source estimate; revisable |
|---|
| October 1974 | 9.608 | Source estimate; revisable |
|---|
| September 1974 | 9.177 | Source estimate; revisable |
|---|
| August 1974 | 8.752 | Source estimate; revisable |
|---|
| July 1974 | 8.216 | Source estimate; revisable |
|---|
| June 1974 | 7.723 | Source estimate; revisable |
|---|
| May 1974 | 7.092 | Source estimate; revisable |
|---|
| April 1974 | 6.482 | Source estimate; revisable |
|---|
| March 1974 | 6.303 | Source estimate; revisable |
|---|
| February 1974 | 5.907 | Source estimate; revisable |
|---|
| January 1974 | 5.569 | Source estimate; revisable |
|---|
| December 1973 | 5.118 | Source estimate; revisable |
|---|
| November 1973 | 4.852 | Source estimate; revisable |
|---|
| October 1973 | 4.623 | Source estimate; revisable |
|---|
| September 1973 | 4.281 | Source estimate; revisable |
|---|
| August 1973 | 4.101 | Source estimate; revisable |
|---|
| July 1973 | 3.840 | Source estimate; revisable |
|---|
| June 1973 | 3.692 | Source estimate; revisable |
|---|
| May 1973 | 3.455 | Source estimate; revisable |
|---|
| April 1973 | 3.296 | Source estimate; revisable |
|---|
| March 1973 | 2.939 | Source estimate; revisable |
|---|
| February 1973 | 2.726 | Source estimate; revisable |
|---|
| January 1973 | 2.679 | Source estimate; revisable |
|---|
| December 1972 | 3.053 | Source estimate; revisable |
|---|
| November 1972 | 3.067 | Source estimate; revisable |
|---|
| October 1972 | 3.028 | Source estimate; revisable |
|---|
| September 1972 | 3.129 | Source estimate; revisable |
|---|
| August 1972 | 2.959 | Source estimate; revisable |
|---|
| July 1972 | 2.884 | Source estimate; revisable |
|---|
| June 1972 | 2.983 | Source estimate; revisable |
|---|
| May 1972 | 3.182 | Source estimate; revisable |
|---|
| April 1972 | 3.393 | Source estimate; revisable |
|---|
| March 1972 | 3.538 | Source estimate; revisable |
|---|
| February 1972 | 3.667 | Source estimate; revisable |
|---|
| January 1972 | 3.781 | Source estimate; revisable |
|---|
| December 1971 | 3.748 | Source estimate; revisable |
|---|
| November 1971 | 3.944 | Source estimate; revisable |
|---|
| October 1971 | 4.243 | Source estimate; revisable |
|---|
| September 1971 | 4.593 | Source estimate; revisable |
|---|
| August 1971 | 4.855 | Source estimate; revisable |
|---|
| July 1971 | 5.072 | Source estimate; revisable |
|---|
| June 1971 | 5.071 | Source estimate; revisable |
|---|
| May 1971 | 5.031 | Source estimate; revisable |
|---|
| April 1971 | 4.945 | Source estimate; revisable |
|---|
| March 1971 | 4.970 | Source estimate; revisable |
|---|
| February 1971 | 5.023 | Source estimate; revisable |
|---|
| January 1971 | 5.027 | Source estimate; revisable |
|---|
| December 1970 | 4.959 | Source estimate; revisable |
|---|
| November 1970 | 4.822 | Source estimate; revisable |
|---|
| October 1970 | 4.684 | Source estimate; revisable |
|---|
| September 1970 | 4.618 | Source estimate; revisable |
|---|
| August 1970 | 4.601 | Source estimate; revisable |
|---|
| July 1970 | 4.532 | Source estimate; revisable |
|---|
| June 1970 | 4.620 | Source estimate; revisable |
|---|
| May 1970 | 4.605 | Source estimate; revisable |
|---|
| April 1970 | 4.655 | Source estimate; revisable |
|---|
| March 1970 | 4.641 | Source estimate; revisable |
|---|
| February 1970 | 4.741 | Source estimate; revisable |
|---|
| January 1970 | 4.700 | Source estimate; revisable |
|---|
| December 1969 | 4.749 | Source estimate; revisable |
|---|
| November 1969 | 4.674 | Source estimate; revisable |
|---|
| October 1969 | 4.671 | Source estimate; revisable |
|---|
| September 1969 | 4.647 | Source estimate; revisable |
|---|
| August 1969 | 4.650 | Source estimate; revisable |
|---|
| July 1969 | 4.764 | Source estimate; revisable |
|---|
| June 1969 | 4.625 | Source estimate; revisable |
|---|
| May 1969 | 4.675 | Source estimate; revisable |
|---|
| April 1969 | 4.650 | Source estimate; revisable |
|---|
| March 1969 | 4.635 | Source estimate; revisable |
|---|
| February 1969 | 4.561 | Source estimate; revisable |
|---|
| January 1969 | 4.651 | Source estimate; revisable |
|---|
| December 1968 | 4.721 | Source estimate; revisable |
|---|
| November 1968 | 4.667 | Source estimate; revisable |
|---|
| October 1968 | 4.605 | Source estimate; revisable |
|---|
| September 1968 | 4.566 | Source estimate; revisable |
|---|
| August 1968 | 4.516 | Source estimate; revisable |
|---|
| July 1968 | 4.429 | Source estimate; revisable |
|---|
| June 1968 | 4.439 | Source estimate; revisable |
|---|
| May 1968 | 4.293 | Source estimate; revisable |
|---|
| April 1968 | 4.129 | Source estimate; revisable |
|---|
| March 1968 | 4.033 | Source estimate; revisable |
|---|
| February 1968 | 3.780 | Source estimate; revisable |
|---|
| January 1968 | 3.521 | Source estimate; revisable |
|---|
| December 1967 | 3.156 | Source estimate; revisable |
|---|
| November 1967 | 3.217 | Source estimate; revisable |
|---|
| October 1967 | 3.145 | Source estimate; revisable |
|---|
| September 1967 | 3.099 | Source estimate; revisable |
|---|
| August 1967 | 3.051 | Source estimate; revisable |
|---|
| July 1967 | 2.925 | Source estimate; revisable |
|---|
| June 1967 | 2.876 | Source estimate; revisable |
|---|
| May 1967 | 2.948 | Source estimate; revisable |
|---|
| April 1967 | 2.997 | Source estimate; revisable |
|---|
| March 1967 | 3.083 | Source estimate; revisable |
|---|
| February 1967 | 3.058 | Source estimate; revisable |
|---|
| January 1967 | 3.124 | Source estimate; revisable |
|---|
| December 1966 | 3.061 | Source estimate; revisable |
|---|
| November 1966 | 3.058 | Source estimate; revisable |
|---|
| October 1966 | 2.994 | Source estimate; revisable |
|---|
| September 1966 | 2.624 | Source estimate; revisable |
|---|
| August 1966 | 2.427 | Source estimate; revisable |
|---|
| July 1966 | 2.432 | Source estimate; revisable |
|---|
| June 1966 | 2.234 | Source estimate; revisable |
|---|
| May 1966 | 1.881 | Source estimate; revisable |
|---|
| April 1966 | 1.796 | Source estimate; revisable |
|---|
| March 1966 | 1.551 | Source estimate; revisable |
|---|
| February 1966 | 1.481 | Source estimate; revisable |
|---|
| January 1966 | 1.353 | Source estimate; revisable |
|---|
| December 1965 | 1.461 | Source estimate; revisable |
|---|
| November 1965 | 1.297 | Source estimate; revisable |
|---|
| October 1965 | 1.252 | Source estimate; revisable |
|---|
| September 1965 | 1.329 | Source estimate; revisable |
|---|
| August 1965 | 1.253 | Source estimate; revisable |
|---|
| July 1965 | 1.195 | Source estimate; revisable |
|---|
| June 1965 | 1.196 | Source estimate; revisable |
|---|
| May 1965 | 1.292 | Source estimate; revisable |
|---|
| April 1965 | 1.192 | Source estimate; revisable |
|---|
| March 1965 | 1.163 | Source estimate; revisable |
|---|
| February 1965 | 1.200 | Source estimate; revisable |
|---|
| January 1965 | 1.274 | Source estimate; revisable |
|---|
| December 1964 | 1.276 | Source estimate; revisable |
|---|
| November 1964 | 1.278 | Source estimate; revisable |
|---|
| October 1964 | 1.225 | Source estimate; revisable |
|---|
| September 1964 | 1.408 | Source estimate; revisable |
|---|
| August 1964 | 1.549 | Source estimate; revisable |
|---|
| July 1964 | 1.508 | Source estimate; revisable |
|---|
| June 1964 | 1.498 | Source estimate; revisable |
|---|
| May 1964 | 1.597 | Source estimate; revisable |
|---|
| April 1964 | 1.697 | Source estimate; revisable |
|---|
| March 1964 | 1.729 | Source estimate; revisable |
|---|
| February 1964 | 1.694 | Source estimate; revisable |
|---|
| January 1964 | 1.617 | Source estimate; revisable |
|---|
| December 1963 | 1.669 | Source estimate; revisable |
|---|
| November 1963 | 1.553 | Source estimate; revisable |
|---|
| October 1963 | 1.536 | Source estimate; revisable |
|---|
| September 1963 | 1.305 | Source estimate; revisable |
|---|
| August 1963 | 1.319 | Source estimate; revisable |
|---|
| July 1963 | 1.240 | Source estimate; revisable |
|---|
| June 1963 | 1.235 | Source estimate; revisable |
|---|
| May 1963 | 1.250 | Source estimate; revisable |
|---|
| April 1963 | 1.208 | Source estimate; revisable |
|---|
| March 1963 | 1.104 | Source estimate; revisable |
|---|
| February 1963 | 1.279 | Source estimate; revisable |
|---|
| January 1963 | 1.330 | Source estimate; revisable |
|---|
| December 1962 | 1.258 | Source estimate; revisable |
|---|
| November 1962 | 1.315 | Source estimate; revisable |
|---|
| October 1962 | 1.259 | Source estimate; revisable |
|---|
| September 1962 | 1.297 | Source estimate; revisable |
|---|
| August 1962 | 1.299 | Source estimate; revisable |
|---|
| July 1962 | 1.394 | Source estimate; revisable |
|---|
| June 1962 | 1.464 | Source estimate; revisable |
|---|
| May 1962 | 1.429 | Source estimate; revisable |
|---|
| April 1962 | 1.418 | Source estimate; revisable |
|---|
| March 1962 | 1.539 | Source estimate; revisable |
|---|
| February 1962 | 1.333 | Source estimate; revisable |
|---|
| January 1962 | 1.266 | Source estimate; revisable |
|---|
| December 1961 | 1.173 | Source estimate; revisable |
|---|
| November 1961 | 1.054 | Source estimate; revisable |
|---|
| October 1961 | 1.307 | Source estimate; revisable |
|---|
| September 1961 | 1.333 | Source estimate; revisable |
|---|
| August 1961 | 1.215 | Source estimate; revisable |
|---|
| July 1961 | 1.254 | Source estimate; revisable |
|---|
| June 1961 | 1.275 | Source estimate; revisable |
|---|
| May 1961 | 1.182 | Source estimate; revisable |
|---|
| April 1961 | 1.215 | Source estimate; revisable |
|---|
| March 1961 | 1.262 | Source estimate; revisable |
|---|
| February 1961 | 1.236 | Source estimate; revisable |
|---|
| January 1961 | 1.327 | Source estimate; revisable |
|---|
| December 1960 | 1.328 | Source estimate; revisable |
|---|
| November 1960 | 1.513 | Source estimate; revisable |
|---|
| October 1960 | 1.427 | Source estimate; revisable |
|---|
| September 1960 | 1.544 | Source estimate; revisable |
|---|
| August 1960 | 1.726 | Source estimate; revisable |
|---|
| July 1960 | 1.742 | Source estimate; revisable |
|---|
| June 1960 | 1.804 | Source estimate; revisable |
|---|
| May 1960 | 2.046 | Source estimate; revisable |
|---|
| April 1960 | 2.004 | Source estimate; revisable |
|---|
| March 1960 | 2.073 | Source estimate; revisable |
|---|
| February 1960 | 2.185 | Source estimate; revisable |
|---|
| January 1960 | 2.071 | Source estimate; revisable |
|---|
| December 1959 | Not published | Not published / transformation unavailable |
|---|
| November 1959 | Not published | Not published / transformation unavailable |
|---|
| October 1959 | Not published | Not published / transformation unavailable |
|---|
| September 1959 | Not published | Not published / transformation unavailable |
|---|
| August 1959 | Not published | Not published / transformation unavailable |
|---|
| July 1959 | Not published | Not published / transformation unavailable |
|---|
| June 1959 | Not published | Not published / transformation unavailable |
|---|
| May 1959 | Not published | Not published / transformation unavailable |
|---|
| April 1959 | Not published | Not published / transformation unavailable |
|---|
| March 1959 | Not published | Not published / transformation unavailable |
|---|
| February 1959 | Not published | Not published / transformation unavailable |
|---|
| January 1959 | Not published | Not published / transformation unavailable |
|---|