Year % of female population 1960 0.526389231776564 1961 0.531926134754621 1962 0.542785425067536 1963 0.549944044011891 1964 0.542335362479247 1965 0.520595271309086 1966 0.488134063784147 1967 0.445769205048102 1968 0.405014066637764 1969 0.381942524286162 1970 0.379296048260217 1971 0.391934402557888 1972 0.418024124166965 1973 0.451999320198516 1974 0.482888189296233 1975 0.494658359307779 1976 0.488622802066384 1977 0.471637109540624 1978 0.434956901938317 1979 0.373439498768376 1980 0.302029213763697 1981 0.263619690155715 1982 0.257296611659508 1983 0.255363804160024 1984 0.259574689782196 1985 0.271269850854417 1986 0.288249061445611 1987 0.306815147885485 1988 0.323036341230572 1989 0.332686015120306 1990 0.334037100552462 1991 0.338668076881982 1992 0.351147049313607 1993 0.364775297369744 1994 0.380490956903864 1995 0.399434335147563 1996 0.421176154030136 1997 0.445525496955862 1998 0.471648585597339 1999 0.497913567342007 2000 0.525439173914979 2001 0.556371925714279 2002 0.589559946495996 2003 0.624652632464666 2004 0.660284602067685 2005 0.688571032623816 2006 0.704126586037917 2007 0.707219842010288 2008 0.701503066247273 2009 0.697675538961821 2010 0.71140444611274 2011 0.742982710725984 2012 0.781148053654432 2013 0.82191298530978 2014 0.863752389258205 2015 0.898114408249823 2016 0.929751980035081 2017 0.971838754050354 2018 1.02559748351386 2019 1.08793879746583 2020 1.15176375107335 2021 1.20507891096458 2022 1.24547702591587 2023 1.27471977011701