Year % of female population 1960 0.3578736353929411 1961 0.3570110908878565 1962 0.3569295296174822 1963 0.356588763646472 1964 0.35614151654538345 1965 0.3554441952147767 1966 0.3544151045526454 1967 0.3532507742100698 1968 0.3522367090948346 1969 0.3512954725551001 1970 0.3500373835905645 1971 0.3485013850844486 1972 0.3471728995331089 1973 0.34655615065869066 1974 0.3465997862347543 1975 0.3470515056112704 1976 0.34927944941061295 1977 0.3529054183550614 1978 0.35694950584887436 1979 0.361047007868927 1980 0.36313355843331596 1981 0.3637999804394031 1982 0.3650681002417192 1983 0.3661847558253075 1984 0.3669069017865941 1985 0.3679223013354683 1986 0.3693587452040117 1987 0.37392670594971694 1988 0.3789608717861437 1989 0.38104212075625166 1990 0.3825665703686426 1991 0.38476364227963633 1992 0.3865239199686382 1993 0.38748908280239985 1994 0.389060643542333 1995 0.39040487033737553 1996 0.39145170497456805 1997 0.39363107475164727 1998 0.3964986960250994 1999 0.4004526486629428 2000 0.4058437649440252 2001 0.4111907592685914 2002 0.41625274508981147 2003 0.4211294409940709 2004 0.4262828404166021 2005 0.43203090963807983 2006 0.43775743613833773 2007 0.443075325692059 2008 0.4473545598346412 2009 0.45092277305586653 2010 0.4548025512368698 2011 0.4586261408825066 2012 0.46136435071853954 2013 0.46289995749916213 2014 0.463983868499353 2015 0.4649295517773765 2016 0.46673600913265434 2017 0.46975714390841505 2018 0.4732731817144934 2019 0.4766920657895684 2020 0.47787425459275656 2021 0.4740101703662993 2022 0.4681342243246108 2023 0.466062262694528