Year	% female
1971	50
1972	50
1973	50.29599
1974	50.29979
1975	50.29476
1976	50.30217
1977	50.30087
1978	50
1979	50.09346
1980	50
1981	50.0618
1982	49.11132
1983	49.20233
1984	49.70823
1985	49.04021
1986	49.45379
1987	49.25373
1988	49.24242
1989	49.61832
1990	49.6124
1991	49.6063
1992	49.20635
1993	49.52008
1994	49.20635
1995	49.2126
1997	49.22481