Year % of female population 1960 38.7077284261769 1961 38.692732681683 1962 38.7408550909457 1963 38.816846358954 1964 39.221952293219 1965 39.8597030701965 1966 40.4128772382541 1967 40.9297437641022 1968 41.3827640105012 1969 41.7274866692484 1970 41.5095726847631 1971 40.8003396977861 1972 40.0439335139489 1973 39.2105340418661 1974 38.2772373397695 1975 37.2403626446525 1976 36.1696169322151 1977 35.1376780700078 1978 34.136516771642 1979 33.1982270951187 1980 32.2928910365243 1981 31.3570354084703 1982 30.4422455573506 1983 29.5960772471708 1984 28.8690261659338 1985 28.4162303664921 1986 28.2208949090856 1987 28.1361555894595 1988 28.1793982173835 1989 28.3589975845411 1990 28.6456112566242 1991 28.5996384791822 1992 28.2273718159286 1993 27.9496660479663 1994 27.7381445951935 1995 27.5720394644903 1996 27.4606164851066 1997 27.3060761688788 1998 27.0649988248505 1999 26.7651993493769 2000 26.4884583936097 2001 26.1975806950859 2002 25.8045190003423 2003 25.3925814803165 2004 24.9730558283237 2005 24.4654512716633 2006 23.9646494205782 2007 23.5347816038826 2008 23.1453735458658 2009 22.7833743247644 2010 22.3293974167082 2011 21.8083706238484 2012 21.2943950110275 2013 20.8111981551923 2014 20.3837597330367 2015 19.9224847358641 2016 19.4384654342872 2017 19.0249378390004 2018 18.6349405134627 2019 18.2730944544237 2020 17.9883746141218 2021 17.7453627190326 2022 17.4924970907086 2023 17.1555338958099