Year % female 1973 40.7463684082031 1974 40.744068145752 1975 40.4042816162109 1976 41.0105209350586 1977 39.2677307128906 1978 42.7938499450684 1979 42.647590637207 1980 41.6189918518066 1981 41.7651901245117 1982 41.3519897460938 1983 41.3844985961914 1984 42.4045295715332 1985 44.5544509887695 1986 45.3984909057617 1987 46.4726409912109 1988 47.5085182189941 1989 48.0099487304688 1990 48.8979187011719 1991 49.442798614502 1992 50.0647087097168 1993 50.7885398864746 1994 51.4472694396973 1995 51.9478988647461 1996 52.6398391723633 1997 53.2596817016602 1998 54.2321281433105 1999 54.8097381591797 2000 55.5625305175781 2001 56.0962905883789 2002 56.8705902099609 2003 57.8999214172363 2004 58.1291084289551 2005 59.8602981567383 2006 60.1574287414551 2007 60.1773986816406 2008 61.0723190307617 2009 61.9284515380859 2010 62.5339317321777 2011 63.144401550293 2012 63.6630592346191 2013 64.078987121582 2014 64.8119506835938 2015 65.9816131591797 2016 66.7112808227539 2017 68.3882293701172 2018 69.7642593383789 2019 70.4325408935547 2020 71.1118392944336 2021 71.8363037109375 2022 72.4038696289062