Year % of female population 1960 27.5636989658759 1961 27.3929014421409 1962 27.3812593252085 1963 27.3619967322689 1964 27.3722666963599 1965 27.4309615279791 1966 27.4791542480678 1967 27.4738050944121 1968 27.3828331668937 1969 27.2395308116207 1970 26.8679490027059 1971 26.526199126559 1972 26.354508391851 1973 26.1178139617018 1974 25.9122261446124 1975 25.7357504722482 1976 25.5824211664597 1977 25.421173713979 1978 25.1506216623851 1979 24.7858242075836 1980 24.3761793479696 1981 23.9464540787348 1982 23.5276478390413 1983 23.1273794343905 1984 22.7263114328896 1985 22.2855952363368 1986 21.7742734742468 1987 21.2083871687353 1988 20.6084938813629 1989 19.9693702854216 1990 19.2696517980752 1991 18.547449596157 1992 17.9259442746472 1993 17.4680717661812 1994 17.0666631773228 1995 16.6632967088621 1996 16.301104096664 1997 15.995147979207 1998 15.744133050571 1999 15.5571083293655 2000 15.3637568655085 2001 15.197730034518 2002 15.1162289034106 2003 15.0518234943 2004 14.9721383713902 2005 14.8790921524207 2006 14.7623038979884 2007 14.6183868051554 2008 14.4763283643188 2009 14.3509498350338 2010 14.1930083175872 2011 14.0105204927318 2012 13.8471039966233 2013 13.66682456125 2014 13.443914083111 2015 13.2073719865977 2016 13.0276848855055 2017 12.8904486970808 2018 12.7537165170294 2019 12.6295445880796 2020 12.5058037235403 2021 12.360290099846 2022 12.2070331492278 2023 12.0531514711769