Year % of female population 1960 20.2162018334598 1961 20.3999300796073 1962 20.4471690007112 1963 20.3965561325893 1964 20.2735418334078 1965 20.1746886043927 1966 20.0873344133652 1967 19.9780183203778 1968 19.9316552724402 1969 19.9209916496182 1970 19.8823922730004 1971 19.8523375414248 1972 19.8259887592494 1973 19.7675632668813 1974 19.6880726003088 1975 19.6083907525168 1976 19.5602725909067 1977 19.5683850385462 1978 19.6335860933757 1979 19.6937744484741 1980 19.7419294643347 1981 19.8261020093666 1982 19.9305623118123 1983 20.0392494989986 1984 20.1474734330948 1985 20.2345816455762 1986 20.2943894461816 1987 20.3566117345707 1988 20.4578950058477 1989 20.5354497012408 1990 20.5053230157833 1991 20.3430813175514 1992 20.0027427484778 1993 19.5734582396432 1994 19.1882576733361 1995 18.8126074720009 1996 18.3873328896829 1997 17.9121688736276 1998 17.3785738434105 1999 16.6323064394245 2000 15.9553770757772 2001 15.5263152570015 2002 15.0855715703372 2003 14.6237622749242 2004 14.1793297223731 2005 13.8148795789488 2006 13.5817964836324 2007 13.4806222458249 2008 13.5189938183069 2009 13.664694644987 2010 13.8525141015763 2011 14.0359976994217 2012 14.1922183433471 2013 14.3490135533646 2014 14.5052794010487 2015 14.6556354432408 2016 14.8085578333512 2017 14.9323975938127 2018 15.0393490061496 2019 15.1443438234853 2020 15.2085431247843 2021 15.238633101919 2022 15.1966069913323 2023 15.0754185135