Year	% female
1971	46.83685
1972	46.05263
1973	45.99816
1974	46.36771
1975	47.45614
1976	47.48142
1977	47.25635
1978	45.98842
1979	47.03425
1980	47.71987
1981	48.64643
1982	45.56869
1983	44.72285
1984	45.97156
1985	47.46032
1986	47.83654
1987	48.69067
1988	48.46727
1989	48.28164
1990	48.75415
1991	52.11506
1992	49.30915
1993	48.4038
1994	47.53673
1996	47.78982
1997	48.48993
2000	49.2915
2008	49.07782
2009	48.73141
2010	48.24336
2011	47.88851
2012	48.06813
2018	44.46461