Year % of female population 1960 18.4096192654631 1961 18.4066777255687 1962 18.3445465558369 1963 18.2636274021464 1964 18.1987034063198 1965 18.1934117960858 1966 18.2373264879567 1967 18.2760198320506 1968 18.288757385084 1969 18.2564096085701 1970 18.179201946366 1971 18.0502650577464 1972 17.8794531042815 1973 17.7206153637378 1974 17.6335747786151 1975 17.6364113563755 1976 17.7264849788217 1977 17.8661085891713 1978 17.9991505689723 1979 18.0925540935484 1980 18.1326911246402 1981 18.1247615357541 1982 18.0532480636033 1983 17.9053881091518 1984 17.6916476855367 1985 17.422217156583 1986 17.1081371591739 1987 16.7602402262556 1988 16.3892281929533 1989 15.9977484233408 1990 15.586960407062 1991 15.1639752495972 1992 14.7716587882411 1993 14.4466953992708 1994 14.1774460741023 1995 13.9179503279223 1996 13.6329428782259 1997 13.320948275553 1998 13.0042300407205 1999 12.7177511525177 2000 12.5066363419583 2001 12.3990542336511 2002 12.3638363427411 2003 12.3464055565574 2004 12.3263957235307 2005 12.3177290322581 2006 12.3274019691872 2007 12.3593771086275 2008 12.4061173543454 2009 12.4453008971827 2010 12.4522629264265 2011 12.4149262467536 2012 12.3519176134757 2013 12.2733124395159 2014 12.1732055678258 2015 12.0545536415376 2016 11.9247446345937 2017 11.7812979779346 2018 11.6327762265335 2019 11.4889504496449 2020 11.3330371390423 2021 11.1633355916892 2022 10.9716265023594 2023 10.7521992656372