Year	% female
1974	22.0390300750732
1975	24.8816108703613
1976	25.4107704162598
1977	25.874719619751
1978	26.0718803405762
1979	24.4193992614746
1980	32.3306083679199
1981	34.4706611633301
1982	33.7148818969727
1983	31.1911201477051
1984	31.078950881958
1985	30.2192306518555
1986	31.3370704650879
1987	32.1243515014648
1988	32.9124717712402
1989	33.7346687316895
1990	34.6918296813965
1991	35.5003509521484
1992	35.5554695129395