Year % of female population 1960 20.9980009534531 1961 21.4761777398671 1962 21.553413200503 1963 21.5064556131009 1964 21.5271679400954 1965 21.5697930165373 1966 21.5617384544082 1967 21.4913377082089 1968 21.3944217649799 1969 21.2679860987484 1970 21.0999815819673 1971 20.8887007706858 1972 20.6351430411548 1973 20.3316027080235 1974 19.9791257221452 1975 19.6030376775225 1976 19.3871279722912 1977 19.3099885852996 1978 19.2037316302247 1979 19.0498186866227 1980 18.8380586985737 1981 18.6612196138148 1982 18.5251626818849 1983 18.344045318049 1984 18.0235157181823 1985 17.5899589700117 1986 16.9286466599971 1987 16.0089598393192 1988 15.0486491124118 1989 14.0831938750756 1990 13.0754863067285 1991 11.7498657177387 1992 11.3504173629639 1993 11.6942219542443 1994 12.8621883676069 1995 13.3919490153178 1996 13.0748199594212 1997 12.6917317247955 1998 12.4587647073914 1999 12.2695138045311 2000 12.055240614843 2001 11.803487153552 2002 11.5071816764426 2003 11.158892931966 2004 10.7473410756209 2005 10.4463924845704 2006 10.3807588193599 2007 10.3839461061452 2008 10.3335874111637 2009 10.1828036874653 2010 9.95794799466127 2011 9.85952802153104 2012 9.82409499330387 2013 9.64146653900607 2014 9.60919343102972 2015 9.54890880034453 2016 9.24528986250041 2017 8.92244382249178 2018 8.58355729845396 2019 8.20875012772495 2020 7.88301893381879 2021 7.53323677346204 2022 7.07524034991397 2023 6.63493146802944