Year	% female
1971	46.890998840332
1972	45.7765693664551
1973	47.6730308532715
1974	47.8037605285645
1975	41.0902709960938
1976	50.2509803771973
1977	42.201358795166
1978	48.7955207824707
1979	54.3117294311523
1986	52.0019912719727
1987	53.2062911987305
1988	54.9964790344238
1989	56.2081184387207
1990	59.0196914672852
1991	62.0064506530762
1992	60.0961494445801
1993	60.3136291503906
2001	62.6876602172852
2002	62.3432502746582
2005	62.2572784423828
2006	59.1744499206543
2007	59.7391014099121
2009	68.8644714355469
2010	69.6024322509766
2011	71.3434524536133
2012	71.0009765625
2013	72.3935394287109
2014	73.0906524658203