Year	% female
1972	23.1886100769043
1973	23.2145805358887
1974	21.9856300354004
1975	21.9901905059814
1976	21.7573299407959
1977	22.5298194885254
1978	22.0294399261475
1979	22.7069091796875
1980	22.7472400665283
1981	22.9404602050781
1982	22.3670597076416
1983	22.7684898376465
1984	23.091480255127
1985	24.2080593109131
1986	23.9701499938965
1987	24.9812507629395
1988	24.0007095336914
1989	23.8199691772461
1990	23.3078498840332
1991	22.9645309448242
1992	22.7125396728516
1993	22.6076602935791
1994	23.0137004852295
1995	23.1455497741699
1996	23.6493492126465
1997	24.2175598144531
1998	24.7766208648682
1999	24.7486000061035
2000	24.9530506134033
2001	25.0193500518799
2002	25.1509304046631
2003	25.8250904083252
2004	25.4783306121826
2005	25.5074405670166
2006	25.3669891357422
2007	25.7295703887939
2008	26.5684604644775
2009	25.9506797790527
2010	25.3664608001709
2011	25.5216693878174
2012	25.8519802093506
2013	26.4036808013916
2014	26.4757404327393
2015	27.8567199707031
2016	28.8014793395996
2017	28.4986305236816
2018	28.9769992828369
2019	29.6161308288574
2020	29.5069103240967
2021	29.5499000549316