Year % of female population 1960 12.9308072220344 1961 13.2413344557812 1962 13.5560677938926 1963 13.852024948923 1964 14.1613689521851 1965 14.4647344578468 1966 14.7669042696676 1967 15.0912273296158 1968 15.3765584539298 1969 15.6381628851876 1970 15.9228120557954 1971 16.2330693891099 1972 16.5815990903628 1973 16.9571759596348 1974 17.3518102125772 1975 17.7195826895449 1976 18.0412111877654 1977 18.3907458376705 1978 18.7538451583189 1979 19.0677915241043 1980 19.2083457493547 1981 19.0599124667459 1982 18.7421353806069 1983 18.3950668715476 1984 18.2298061017155 1985 18.3812610453776 1986 18.6482952279725 1987 18.8524948375475 1988 18.9762804980343 1989 19.0482654968126 1990 19.1131487740979 1991 19.1696091187132 1992 19.2087564063698 1993 19.254343501292 1994 19.3153000946687 1995 19.3905738447352 1996 19.438981290469 1997 19.4419831696219 1998 19.4396549439907 1999 19.5487159854955 2000 19.8132555536029 2001 20.1417848301454 2002 20.4944071511356 2003 20.885219888818 2004 21.3694801277751 2005 21.914126088864 2006 22.4140492376882 2007 22.7373052431544 2008 22.9269415241801 2009 23.0973302930136 2010 23.1048618314046 2011 23.0183785958826 2012 23.0328125480313 2013 23.1092704003288 2014 23.2503812758016 2015 23.4282029451569 2016 23.5900187006131 2017 23.7439224025807 2018 23.9205098649665 2019 24.1492852097701 2020 24.3815647959397 2021 24.5862177703007 2022 24.8242386306183 2023 25.1433756382044