Annual % female
1970 22.287670135498
1971 21.8042907714844
1972 23.8435497283936
1973 24.2102394104004
1974 24.2269802093506
1975 24.645959854126
1976 24.8996200561523
1977 26.2897396087646
1978 28.0323104858398
1979 29.309549331665
1980 30.1986694335938
1981 31.3897590637207
1982 30.6733093261719
1983 32.0647583007812
1984 33.4753189086914
1985 34.6635513305664
1986 35.1801109313965
1987 33.1801681518555
1988 35.112720489502
1989 37.4806518554688
1990 36.2519111633301
1991 36.1821708679199
1992 37.7908897399902
1993 38.114818572998
1994 39.0843696594238
1995 39.0191497802734
1996 39.7136192321777
1997 39.3254699707031
1998 38.8837013244629
1999 38.372631072998
2000 38.625171661377
2001 38.4284706115723
2002 38.913158416748
2003 38.860710144043
2004 41.3561706542969
2005 40.469669342041
2006 40.9232902526855
2007 38.0505294799805
2008 37.9278793334961
2009 38.5110702514648
2010 39.4091300964355
2011 40.5879287719727
2012 39.73583984375
2013 41.6262512207031
2014 42.180980682373
2015 43.2052688598633
2016 43.7373008728027
2017 44.4947319030762
2018 44.9201812744141
2019 46.0852813720703
2020 47.0698318481445
2021 46.784351348877
2022 47.0801887512207