Year % of female population 1960 16.3394960138346 1961 16.4993095769397 1962 16.6667041859971 1963 16.8227104536688 1964 16.9846102346989 1965 17.161187488456 1966 17.3473581024655 1967 17.5515933820669 1968 17.7630051524323 1969 17.9607504667808 1970 18.1480122869775 1971 18.3306356358546 1972 18.5024747968655 1973 18.6595618278624 1974 18.8093811003415 1975 18.9673982618186 1976 19.1293988564406 1977 19.2938041638918 1978 19.466017915614 1979 19.6696256915696 1980 19.8911200440039 1981 20.097058746298 1982 20.288263552476 1983 20.4722164594963 1984 20.6168011521822 1985 20.7074774608506 1986 20.7673568818514 1987 20.7906925428065 1988 20.7794867683138 1989 20.7340157057797 1990 20.6486893885692 1991 20.5294931897414 1992 20.3841724832198 1993 20.2142195888533 1994 20.0095086677724 1995 19.7675086034421 1996 19.4269206710788 1997 18.9931109992135 1998 18.5296123088654 1999 18.07619141941 2000 17.6659518186404 2001 17.3419414458845 2002 17.0943456395184 2003 16.8915672725756 2004 16.7252685317923 2005 16.5675412987344 2006 16.4475804176572 2007 16.3584512878394 2008 16.2589596350159 2009 16.1397703897644 2010 16.0072127893514 2011 15.8577364294759 2012 15.7028047728999 2013 15.5559307573334 2014 15.4168924054155 2015 15.2770227747126 2016 15.118829609861 2017 14.9356838628544 2018 14.7341834962243 2019 14.5192015218513 2020 14.3055721781276 2021 14.0929288010431 2022 13.8624128518877 2023 13.6162057888523