Year	% female
1976	39.19246
1977	40.32805
1978	41.60571
1979	41.35626
1980	40.62659
1981	39.34779
1982	38.88868
1983	39.13928
1984	39.42926
1985	39.96555
1986	39.83079
1987	40.83713
1988	40.96952
1989	41.22715
1990	40.98847
1991	41.43601
1992	42.16223
1993	42.61543
1994	43.92193
1995	44.58275
1996	45.19489
1997	45.34682
2001	46.75559
2003	46.84521
2006	47.66759
2007	47.69544
2008	47.83003
2009	47.97153
2010	47.09686
2011	47.11494
2012	47.18714
2013	47.3384
2014	47.35246
2015	47.34064
2016	47.11396
2017	47.05148
2018	46.94867