Year	% female
1971	46.65936
1972	46.71125
1973	46.97842
1974	47.09907
1975	47.03737
1976	47.04559
1977	47.29064
1984	50.46861
1985	50.87554
1986	50.62863
1987	50.64079
1988	50.8526
1991	53.38102
1993	49.99808
1994	50.18676
1995	50.23246
1996	50.36666
1999	50.81323
2000	50.81793
2001	50.89698
2002	51.48073
2003	51.4147
2004	51.33086
2005	51.33038
2006	51.31938
2007	51.21658
2008	51.22441
2009	51.28786
2010	51.02071
2011	50.91468
2012	50.89206
2013	52.84345
2014	52.82659
2015	53.04716
2016	52.5184
2017	52.5771