Year % of female population 1960 18.7166183944706 1961 18.5814819482449 1962 18.3866881514116 1963 18.1459111037736 1964 17.8610403825158 1965 17.5206690859336 1966 17.1296885973139 1967 16.6956115528617 1968 16.251005247967 1969 15.8449857686703 1970 15.499295962624 1971 15.223328375932 1972 15.0193582328955 1973 14.885290619767 1974 14.7878967891511 1975 14.6903567767176 1976 14.5933142334835 1977 14.4946770365809 1978 14.372030019424 1979 14.2423489387556 1980 14.1413191727188 1981 14.0781891421494 1982 14.0475271709935 1983 14.0334983601894 1984 14.0208884299476 1985 13.9801742684369 1986 13.8922594102719 1987 13.7513668594914 1988 13.5644843779482 1989 13.3382200923204 1990 13.1086957427223 1991 12.9222467908375 1992 12.7866598865442 1993 12.6910613093313 1994 12.6304528004738 1995 12.5768361048113 1996 12.4860531307533 1997 12.3421504297597 1998 12.1369619946172 1999 11.8764138658012 2000 11.5628528050412 2001 11.2249747458198 2002 10.9067629694889 2003 10.6153129055469 2004 10.3451932792025 2005 10.0995515241382 2006 9.87066544114687 2007 9.64432574907128 2008 9.40903294578453 2009 9.13770525880095 2010 8.84235512051738 2011 8.58276645191719 2012 8.38386161125301 2013 8.25784581500489 2014 8.219360936792 2015 8.2239991714791 2016 8.19775496623722 2017 8.12831595511298 2018 8.02952294329544 2019 7.89074862638156 2020 7.73206698162019 2021 7.58906522558024 2022 7.4622979733724 2023 7.34618409392703