Year % of female population 1960 17.543799687276167 1961 17.610646071537058 1962 17.681581945423876 1963 17.748431281366887 1964 17.804961970993112 1965 17.854216571099457 1966 17.89385234509775 1967 17.925100098864785 1968 17.95457370698751 1969 17.985198570621975 1970 18.015846523743697 1971 18.051430845365363 1972 18.091792370224034 1973 18.12655120448264 1974 18.150782365897452 1975 18.172748122162652 1976 18.19263940775174 1977 18.214139088900712 1978 18.244108001781388 1979 18.276928294722794 1980 18.296634287005947 1981 18.30643171668944 1982 18.31049212594626 1983 18.2921850528584 1984 18.25147740895524 1985 18.20128295719947 1986 18.152374120817555 1987 18.110093715013996 1988 18.040564478508344 1989 17.95857537142268 1990 17.883399516453732 1991 17.788174753001456 1992 17.67924628582623 1993 17.574912892475197 1994 17.461635213195766 1995 17.3627278722613 1996 17.29927039623005 1997 17.234930429202645 1998 17.155357789084533 1999 17.086787619030606 2000 17.035805162917647 2001 16.990343110934965 2002 16.965571772554263 2003 16.956547248583494 2004 16.94543873730301 2005 16.93176762411157 2006 16.91861898839668 2007 16.901498311695057 2008 16.885324000075038 2009 16.861212724991336 2010 16.816221096755537 2011 16.750503850554992 2012 16.66322891482388 2013 16.54626852490787 2014 16.406335972034995 2015 16.25551467514843 2016 16.100488867444962 2017 15.948062381577373 2018 15.802990634743564 2019 15.668170392466347 2020 15.539313343954722 2021 15.417128415709435 2022 15.296846853790408 2023 15.16803492612653