Year % of female population 1960 0.496285540882098 1961 0.521658439801046 1962 0.552278219126691 1963 0.580531131898936 1964 0.59831195766578 1965 0.604496491062689 1966 0.59976953900881 1967 0.585533621644561 1968 0.567671601761215 1969 0.553229991778552 1970 0.543852288319088 1971 0.538916039761636 1972 0.537915985512701 1973 0.536516271839901 1974 0.529979214362903 1975 0.51836282306602 1976 0.502896390556044 1977 0.484724960030261 1978 0.467699112085051 1979 0.456161193335136 1980 0.450395488214797 1981 0.448921565717038 1982 0.450836140695873 1983 0.456197532561654 1984 0.461559885094781 1985 0.462454041303378 1986 0.459886752273743 1987 0.455360971641857 1988 0.447010760574356 1989 0.433635294811618 1990 0.417720773454015 1991 0.399007539704328 1992 0.377195327199185 1993 0.35608783860402 1994 0.321936684179193 1995 0.285565869028357 1996 0.287187837816582 1997 0.291914344475114 1998 0.323926080039163 1999 0.381360369503332 2000 0.435681904536361 2001 0.484029857398599 2002 0.520417816702915 2003 0.540608144903981 2004 0.558338116706122 2005 0.584085041466439 2006 0.613017653654968 2007 0.640087041286172 2008 0.662357077600288 2009 0.67903565139585 2010 0.689414886007954 2011 0.695349700474406 2012 0.685769918305683 2013 0.665507830894001 2014 0.652509510131035 2015 0.645556532649449 2016 0.641278273244449 2017 0.636519556965099 2018 0.629234603767042 2019 0.619171811081734 2020 0.606830033895976 2021 0.593111654388182 2022 0.584849307282325 2023 0.585826925337268