Year % of female population 1960 18.7842587698107 1961 18.8315112830574 1962 18.8616834472603 1963 18.8785603235411 1964 18.8929303640932 1965 18.9217580900482 1966 18.9798979110992 1967 19.0646716790439 1968 19.1665114580291 1969 19.2881533928434 1970 19.4200095243114 1971 19.522218092433 1972 19.5782241228437 1973 19.5981825659608 1974 19.5752676094717 1975 19.5184853978765 1976 19.4626568715668 1977 19.4304857621441 1978 19.4030685174562 1979 19.3582066894136 1980 19.2861994969688 1981 19.1579727517641 1982 18.9523411597345 1983 18.7250949103471 1984 18.5140240619962 1985 18.3139826161486 1986 18.1345405096985 1987 17.9570137210607 1988 17.7365516012726 1989 17.446626777238 1990 17.0910677841132 1991 16.6753845532383 1992 16.2339701081894 1993 15.8382630101187 1994 15.5304548421951 1995 15.2899825995007 1996 15.0985800317826 1997 14.9332946688246 1998 14.7545833303389 1999 14.5560896458377 2000 14.3568206988786 2001 14.201077916029 2002 14.1028050619089 2003 14.0356919786276 2004 13.9845523608164 2005 13.9506811181488 2006 13.7672566489054 2007 13.4859603807824 2008 13.5265340145438 2009 13.6930132524345 2010 13.674977407269 2011 13.5919308361445 2012 13.5066765334884 2013 13.4761265009771 2014 13.2556203464904 2015 12.5791030995121 2016 11.5582702350091 2017 10.5101064352078 2018 9.55690332268674 2019 8.88779942740258 2020 8.65153853894445 2021 8.6854456454739 2022 8.80413607039366 2023 8.98235242248753