Year % of female population 1960 39.19271494446094 1961 39.00541808490065 1962 39.04264185756058 1963 39.43863401105021 1964 39.777054506348804 1965 39.89391811063443 1966 39.91157385199268 1967 39.76167138972553 1968 39.607325600928874 1969 39.51718686353442 1970 39.37199620451176 1971 39.226121570712706 1972 39.011101518957936 1973 38.78417221895588 1974 38.697213658648764 1975 38.62429592072493 1976 38.50866012426713 1977 38.07115742742003 1978 37.13171291547297 1979 36.14056162709862 1980 35.29454133698167 1981 34.53278300596509 1982 33.90477309668684 1983 33.1905839074721 1984 32.36556052227158 1985 31.58880003916801 1986 30.895703728627613 1987 30.33754126458677 1988 29.83653263900719 1989 29.405307624436407 1990 29.126793596695936 1991 28.869147897249796 1992 28.56193802076611 1993 28.248254227719105 1994 27.88061022249242 1995 27.449595233968868 1996 26.96155343827923 1997 26.39459411819709 1998 25.829589735217027 1999 25.29682354851108 2000 24.74223265795648 2001 24.136062769807232 2002 23.45329154505253 2003 22.77684337110432 2004 22.129568328439 2005 21.46753559502815 2006 20.918899335305202 2007 20.5408860010051 2008 20.241023198373256 2009 19.995975652814696 2010 19.788945396089638 2011 19.61643683950479 2012 19.504532657304924 2013 19.432070575330954 2014 19.37324625594236 2015 19.297331685395353 2016 19.222042257120403 2017 19.18604810980139 2018 19.110676810337093 2019 18.97103298099634 2020 18.772622807418394 2021 18.51042858623668 2022 18.208305168149266 2023 17.877264419516774