Year % of female population 1960 9.47221584210954 1961 9.70581787750439 1962 9.91551257498298 1963 10.136540711624 1964 10.4193693755206 1965 10.7625625239649 1966 11.091739632288 1967 11.3686990743692 1968 11.6117307501667 1969 11.8253706245873 1970 12.0455576389383 1971 12.2819498143733 1972 12.505601109806 1973 12.7152922662475 1974 12.9228995099671 1975 13.1099985175402 1976 13.2615465419768 1977 13.3861716228288 1978 13.4629360415496 1979 13.484293919856 1980 13.4219980762453 1981 13.2767321922336 1982 13.0933386964598 1983 12.8960509962757 1984 12.7473198439525 1985 12.6876839850192 1986 12.7179408766565 1987 12.8352033484987 1988 13.0296661303298 1989 13.2711345866171 1990 13.5435432814645 1991 13.8287674061 1992 14.1242241794938 1993 14.4324889228297 1994 14.7309284270065 1995 15.0417550138599 1996 15.3842664336657 1997 15.7606625540222 1998 16.1621648540662 1999 16.5667863960395 2000 17.0146665947055 2001 17.5220104233149 2002 18.052732210542 2003 18.5897270910011 2004 19.1230744380936 2005 19.6316218607231 2006 20.1334555830063 2007 20.6383738960617 2008 21.0983401880141 2009 21.4713077282784 2010 21.8317071998958 2011 22.1920955388216 2012 22.5107350218724 2013 22.850451738093 2014 23.2503197881361 2015 23.6330462678662 2016 23.9667892044246 2017 24.2918414600312 2018 24.5795442255496 2019 24.8851501254286 2020 25.2112730080533 2021 25.468908583534 2022 25.7386627975745 2023 26.1992774828677