Year	% female
1973	49.17937
1974	48.61747
1975	48.66017
1976	48.79939
1977	48.88403
1978	48.96085
1979	49.11869
1980	49.09839
1983	49.02528
1984	49.34977
1985	49.55648
1986	49.53837
1987	49.32556
1988	49.63134
1989	49.05357
1990	49.43189
1991	49.50069
1992	48.93973
1993	48.85889
1994	48.75782
1999	48.54853
2000	48.5516
2001	48.69253
2002	48.66538
2003	48.65281
2004	48.72566
2005	48.79162
2006	48.86269
2007	48.873
2008	48.82157
2009	48.79811
2010	48.78763
2011	48.80466
2012	48.8111
2013	48.76019
2014	48.77132
2015	48.8202
2016	48.8577
2017	48.85816