Year	% female
1978	45.72178
1979	46.15961
1980	46.31774
1981	46.30774
1982	46.42563
1983	46.46396
1984	46.42666
1985	46.48654
1986	46.49311
1987	46.6718
1988	46.84023
1989	47.06012
1990	47.0719
1991	47.19526
1992	47.33183
1993	46.96743
1994	47.15418
1995	47.19111
1996	47.22034
1998	46.58438
1999	46.79676
2000	46.96133
2001	47.21451
2002	47.2206
2003	47.25178
2004	47.16756
2005	47.29768
2006	47.3071
2007	47.48521
2008	47.62395
2009	47.72084
2010	47.9436
2011	47.97174
2012	47.92778
2013	48.05592
2015	47.83439
2016	47.76601
2017	47.67995