Year % of female population 1960 0.738134360413962 1961 0.723013343124411 1962 0.710513064012858 1963 0.699979952662254 1964 0.690626155292945 1965 0.681863094799308 1966 0.673750151377447 1967 0.665971315617999 1968 0.657864335908663 1969 0.64870792367571 1970 0.638332608454349 1971 0.627439808889738 1972 0.616469217171148 1973 0.604995741461175 1974 0.592748283850232 1975 0.580107363038166 1976 0.567292896707273 1977 0.554405664787458 1978 0.54212326203446 1979 0.531704529694832 1980 0.523705692466008 1981 0.517711717944553 1982 0.513526997848437 1983 0.510876491420954 1984 0.509467942411164 1985 0.509288309489217 1986 0.510026030361456 1987 0.511421604169248 1988 0.51355315821677 1989 0.5165865715982 1990 0.520177731267865 1991 0.524776082463748 1992 0.530414324178244 1993 0.585439381665095 1994 0.679233410864604 1995 0.754393182636691 1996 0.812492828259761 1997 0.856653135894498 1998 0.890517869324423 1999 0.916593200611971 2000 0.937732934224665 2001 0.926401964986546 2002 0.889651340889628 2003 0.862155761811575 2004 0.842836237050595 2005 0.830649227919432 2006 0.824337426065364 2007 0.822755481392201 2008 0.824306014498486 2009 0.826845829301211 2010 0.829147358473565 2011 0.831389483538411 2012 0.833613475485465 2013 0.835399692997993 2014 0.836535839459165 2015 0.837261953556188 2016 0.838024844904637 2017 0.838684867009824 2018 0.8394085779559 2019 0.84136975788268 2020 0.836010243466123 2021 0.816859535702571 2022 0.79520360513511 2023 0.793750088455496