Year	% female
1973	14.7149896621704
1974	17.4388198852539
1975	18.986629486084
1976	18.6458396911621
1977	19.7243404388428
1978	20.3847103118896
1979	19.8782997131348
1980	20.6584300994873
1981	21.0058097839355
1982	23.2476692199707
1983	24.0648708343506
1984	24.6989593505859
1985	24.6303005218506
1986	26.4230403900146
1987	27.8571701049805
1988	28.2132301330566
1989	29.08078956604
1990	29.0334606170654
1991	29.3872509002686
1992	30.7200698852539
1993	30.8219795227051
1994	31.8890895843506
1995	31.7082996368408
1996	32.320369720459
1999	35.2891502380371
2000	36.0013809204102
2001	37.9907608032227
2002	37.2051582336426
2003	38.1043090820312
2004	38.3515701293945
2005	38.8168792724609
2006	38.8985786437988
2007	39.1377716064453
2008	38.1972007751465
2009	38.8685913085938
2010	39.4533615112305
2011	39.7890014648438
2012	40.2036781311035
2013	40.693489074707
2014	41.712100982666
2015	42.4691581726074
2016	42.8795890808105
2017	43.443489074707
2018	43.8613090515137
2019	44.434139251709
2020	44.9362602233887
2021	45.4171981811523