Year	% female
1971	19.391149520874
1972	19.9484901428223
1973	19.934440612793
1974	20.1412792205811
1975	20.0284309387207
1976	20.1315803527832
1977	19.6231594085693
1978	20.8523006439209
1979	21.8780307769775
1980	22.1188297271729
1981	21.4324493408203
1982	21.2496109008789
1983	20.8733100891113
1984	21.1237106323242
1985	20.2836208343506
1986	19.9820899963379
1987	20.2301292419434
1988	20.8182392120361
1989	20.1611404418945
1990	19.4804000854492
1991	18.7753295898438
1992	14.5747804641724
1994	16.0727195739746
1995	16.0164108276367
1996	14.4848003387451
1997	14.1462097167969
1998	12.1207504272461
1999	13.4591197967529
2000	13.2124099731445
2001	12.4768400192261
2002	12.2722396850586
2003	12.0964202880859
2004	11.8580799102783
2005	11.5680198669434
2006	12.1701202392578
2007	12.0867300033569
2008	12.2092599868774
2009	12.8298902511597
2010	13.7897300720215
2011	13.5777997970581
2012	13.87965965271
2013	14.6647300720215
2014	16.0301609039307
2015	15.8331098556519
2016	16.1739501953125
2017	16.3959503173828
2018	16.5595397949219
2019	17.0358905792236
2020	17.4499206542969
2021	18.2579898834229
2022	19.0946197509766