Year % of female population 1960 13.6569228957903 1961 13.6545914393145 1962 13.6424973717657 1963 13.622539948505 1964 13.6012399512534 1965 13.5949495274694 1966 13.6116250913743 1967 13.6487576862079 1968 13.7105599618602 1969 13.7900774372576 1970 13.8770046626018 1971 13.9685033097415 1972 14.0572187057248 1973 14.1494924638573 1974 14.2464020063268 1975 14.3390758510079 1976 14.4610721768347 1977 14.6088239207391 1978 14.8688424977085 1979 15.1365827856444 1980 15.3484301172693 1981 15.6235653719537 1982 15.7643888354187 1983 15.7269935203566 1984 15.5755498533057 1985 15.3190804483858 1986 14.9919348894454 1987 14.5900736331087 1988 14.1534922033915 1989 13.5171299167465 1990 13.0351203259311 1991 12.9149381859658 1992 12.9360265290359 1993 13.0638807068036 1994 13.2504277214576 1995 13.5646947030932 1996 13.9585748857599 1997 14.2787095872473 1998 14.4793978954942 1999 14.5336346216224 2000 14.3550392834042 2001 13.9773549045663 2002 13.5612112872751 2003 13.1983127063542 2004 12.9128942866575 2005 12.6861013209654 2006 12.4921931422706 2007 12.2892222685622 2008 12.0441243754167 2009 11.7767428170502 2010 11.5441191742728 2011 11.3852192400647 2012 11.3068560830642 2013 11.3091968000056 2014 11.3752223341264 2015 11.4770207352398 2016 11.6027533594567 2017 11.7404309351765 2018 11.8550772759596 2019 11.9281590083986 2020 11.9643089470363 2021 11.9740149711475 2022 11.9615054849678 2023 11.9196331530307