Year	% female
1972	49.89154
1973	50.32206
1974	49.95819
1975	50.02107
1976	50
1977	50
1978	50.01866
1979	50.01866
1980	50.01866
1981	45
1982	47.46622
1983	47.34912
1984	47.26319
1985	47.58138
1986	46.64871
1987	50.99338
1988	50.73698
1989	49.55919
1990	49.69679
1991	49.69343
1992	48.0333
1993	48.02817
1994	48.0663
1995	48.0663
1996	48.0663
1997	48.0663