Year	% female
1971	42.67396
1972	43.37304
1973	44.03956
1974	44.69998
1975	45.08389
1976	45.39591
1977	45.3351
1978	45.41955
1979	45.58465
1980	45.74307
1981	45.75879
1982	45.79534
1983	46.00271
1984	46.37593
1985	46.80031
1986	47.07385
1987	47.25902
1988	47.55299
1989	47.79039
1990	48.27538
1992	49.4218
1993	49.18137
1994	49.2213
1995	49.21701
1996	49.09198
1997	49.16822
1998	49.33207
1999	49.12975
2000	49.52104
2001	49.97231
2003	49.6822
2004	49.94796
2005	50.64681
2006	49.7517
2007	48.90852
2008	49.55038
2009	49.30165
2010	49.16639
2011	48.40399
2012	50.34245
2013	49.86018
2014	49.84898
2015	49.70154