Year	% female
1970	48.84092
1971	48.84047
1972	48.87391
1973	49.18056
1974	48.76395
1975	48.77359
1976	49.1526
1977	48.6923
1978	48.69151
1979	48.60402
1980	48.66644
1981	48.66084
1982	48.67517
1983	48.67457
1984	48.66428
1985	48.57648
1986	48.54249
1987	48.6166
1988	48.49575
1989	48.55651
1990	48.61794
1991	48.64298
1992	48.61586
1993	48.62538
1994	48.54552
1995	48.39593
1996	48.39049
1997	48.4635
1998	48.43088
1999	48.43891
2000	48.48705
2001	48.48979
2002	48.41775
2003	48.43839
2004	48.46568
2005	48.43621
2006	48.43216
2007	48.43982
2008	48.43568
2009	48.48967
2010	48.51815
2011	48.55587
2012	48.59042
2013	48.61978
2014	48.6179
2015	48.6204
2016	48.63118
2017	48.52864
2018	48.5298