Year	% female
1972	21.104829788208
1973	21.0321807861328
1974	19.1688404083252
1975	19.0902690887451
1976	18.5477695465088
1977	19.7519302368164
1978	19.1154899597168
1979	20.2567100524902
1980	20.0085601806641
1981	20.3620300292969
1982	19.4278697967529
1983	19.8729305267334
1984	20.1846294403076
1985	21.9302291870117
1986	21.7215404510498
1987	23.3035907745361
1988	21.7574596405029
1989	21.413480758667
1990	20.5756893157959
1991	20.0828399658203
1992	19.838809967041
1993	19.5792007446289
1994	20.0083904266357
1995	19.8787403106689
1996	20.5474395751953
1997	21.1632595062256
1998	21.5916996002197
1999	21.4052791595459
2000	21.5634098052979
2001	20.8415908813477
2002	21.0951404571533
2003	20.7199306488037
2004	20.3963203430176
2005	20.2630405426025
2006	20.1528701782227
2007	20.9880104064941
2008	21.7385997772217
2009	21.7894992828369
2010	21.7189998626709
2011	22.3891296386719
2012	22.5248394012451
2013	22.6791706085205
2014	23.2072296142578
2015	24.4964294433594
2016	25.8550891876221
2017	25.7107601165771
2018	25.7685794830322
2019	26.4195404052734
2020	26.6113395690918
2021	26.381519317627