Year	% female
1971	38.46111
1972	35.71869
1973	38.0171
1974	38.00664
1975	84.88334
1976	82.85628
1977	83.26827
1978	75.03951
1979	71.59346
1980	72.99825
1981	71.58489
1982	71.90812
1983	69.97051
1984	68.25853
1985	64.18007
1986	64.28634
1987	64.19677
1988	63.06561
1989	62.83649
1990	63.82612
1991	63.98381
1992	62.00643
1993	48.17873
1994	49.2099
1995	50.57972
1996	53.52629
1997	55.19774
2004	54.71948
2005	54.86119
2006	53.86728
2007	53.96535
2008	53.91557
2009	54.04177
2010	52.6015
2011	50.90909
2012	51.64227
2017	33.08091