Year % female 1971 12.9372301101685 1972 13.0904397964478 1973 13.4277696609497 1974 14.29248046875 1975 13.8741102218628 1976 14.7940196990967 1977 15.5243797302246 1978 15.4493703842163 1979 15.9575700759888 1980 15.9591102600098 1981 15.4441995620728 1982 16.0077209472656 1983 16.6895999908447 1984 16.9976501464844 1985 17.3025798797607 1986 17.3964996337891 1987 17.3255596160889 1988 21.1510601043701 1989 21.4060707092285 1990 21.5679492950439 1991 22.2551193237305 1992 22.7917098999023 1993 23.5296192169189 1994 24.3040103912354 1995 25.1535797119141 1996 26.4746398925781 1997 25.0965690612793 1998 25.096960067749 1999 25.5020999908447 2000 26.8779697418213 2001 27.0800704956055 2002 28.1107292175293 2003 28.7642307281494 2004 29.2789497375488 2005 30.5023193359375 2006 30.8829097747803 2007 31.5123500823975 2008 32.3669204711914 2009 33.0358009338379 2010 33.7701416015625 2011 34.0950584411621 2012 34.5107688903809 2013 34.6002807617188 2014 34.7335586547852 2015 34.9984512329102 2016 34.9063491821289 2017 35.0854682922363 2018 35.5679702758789 2019 35.1087188720703 2020 35.7576484680176 2021 36.5959281921387 2022 37.2754707336426