Year % of female population 1960 18.9320163646962 1961 18.9418562657999 1962 18.9743104047676 1963 19.0357401381109 1964 19.1148875649872 1965 19.2101791206245 1966 19.3224011949166 1967 19.4307103648174 1968 19.4990520519674 1969 19.5296440256687 1970 19.5408026143777 1971 19.5380917949602 1972 19.5095470228069 1973 19.4569055702028 1974 19.3690879602748 1975 19.2615288957572 1976 19.159959945402 1977 19.0757499823174 1978 19.0456057576768 1979 19.0749051605741 1980 19.12392565067 1981 19.1698740910347 1982 19.224309652751 1983 19.1992963759904 1984 19.1254587564355 1985 19.0619300086001 1986 19.0278072582989 1987 18.9800813458343 1988 18.800597863532 1989 18.6336256518352 1990 18.5197198958057 1991 18.3959745411328 1992 18.2740232581136 1993 18.063298297683 1994 17.8034202138766 1995 17.5572310876981 1996 17.3048858321306 1997 17.0521743573978 1998 16.7858875826372 1999 16.5676774458479 2000 16.4317986461145 2001 16.348500772989 2002 16.2982152526822 2003 16.2341328153185 2004 16.1053990495838 2005 15.9129209597379 2006 15.7463411675039 2007 15.6771490998832 2008 15.7088274233276 2009 15.8192925525158 2010 16.0094440052713 2011 16.1889759080747 2012 16.2306054984035 2013 16.1683346338634 2014 16.0370556149416 2015 15.8830579330312 2016 15.762843095299 2017 15.6673761016356 2018 15.5886073962278 2019 15.5159337917989 2020 15.4092344480766 2021 15.2604494717245 2022 15.0891108046178 2023 14.8967350857049