Year	% female
1970	47.60867
1971	48.06992
1974	49.18314
1975	49.07179
1976	48.51457
1977	49.45464
1978	49.77972
1979	50.3628
1980	48.92125
1981	48.53666
1982	47.97729
1983	47.95689
1984	48.30976
1985	47.81525
1986	47.674
1987	47.21032
1988	46.77752
1989	46.70648
1990	46.70817
1991	46.56405
1992	46.39664
1993	46.77149
1994	47.93869
1995	51.46384
2007	48.19388
2008	48.1743
2009	48.17783
2016	48.50495
2017	48.58072