Year % of female population 1960 17.6410970403661 1961 17.7293199823059 1962 17.7976137608432 1963 17.8434971259219 1964 17.8660356199274 1965 17.8671812728112 1966 17.850776557915 1967 17.8003541469173 1968 17.7316691170376 1969 17.6738232830287 1970 17.6250590194081 1971 17.598571509186 1972 17.6022857769956 1973 17.6340654360435 1974 17.6884332911758 1975 17.7527412162599 1976 17.8255795725707 1977 17.9089509299404 1978 17.995857831349 1979 18.0838015916027 1980 18.155237229416 1981 18.2122275455172 1982 18.2893771725611 1983 18.3702830255211 1984 18.4133194680334 1985 18.408752581115 1986 18.3576031846886 1987 18.2683727331851 1988 18.1589863840068 1989 18.0344111426557 1990 17.8991067126283 1991 17.7616422716165 1992 17.6229950350628 1993 17.4690796085749 1994 17.272784690204 1995 17.0429054325458 1996 16.8050528420221 1997 16.5672609975531 1998 16.3380461014046 1999 16.2687923577902 2000 16.3374366722958 2001 16.3527271474098 2002 16.2464393666115 2003 15.9512024294249 2004 15.589592914179 2005 15.3036396456908 2006 15.0855655068428 2007 14.9511131519931 2008 14.9025535768952 2009 14.8858500045106 2010 14.8664099444785 2011 14.8510016114796 2012 14.8289162477273 2013 14.7835116515562 2014 14.7071237367682 2015 14.5934616767733 2016 14.4469995943401 2017 14.3069483556949 2018 14.1816414480232 2019 14.0483928299396 2020 13.8954999588798 2021 13.7230159749097 2022 13.5382483643179 2023 13.3416363265388