Year	% female
1970	49.81581
1971	49.80933
1972	49.94044
1973	50.04479
1974	49.93625
1975	50.07676
1976	50.07987
1977	50.16283
1978	50.21367
1979	50.34499
1980	50.25121
1981	49.92768
1982	50.47393
1983	50.5485
1984	50.57241
1985	50.58267
1986	50.62429
1987	50.62791
1988	50.59511
1989	50.61873
1990	50.7319
1991	50.82799
1992	50.90873
1993	50.82373
1994	50.84884
1995	50.91472
1996	50.96492
1997	50.83305
1998	50.95392
1999	50.79488
2000	50.34055
2001	50.34136
2002	50.20304
2003	50.20203
2004	50.75675
2005	50.75958
2006	50.7402
2007	50.76296
2008	50.75425
2009	50.69576
2010	50.57847
2011	50.52879
2012	50.45243
2013	50.511
2014	50.5169
2015	50.4833
2016	50.42591
2017	50.3398
2018	50.33841