Year	% female
1971	46.44341
1976	46.05342
1981	46.24015
1982	46.63922
1983	46.45549
1984	46.4595
1985	47.04692
1986	46.60973
1987	46.36341
1988	46.54643
1989	46.91897
1990	46.66111
1991	46.8478
1992	46.88975
1993	47.06864
1994	47.21647
1995	47.24698
1996	47.3826
1997	47.58237
1998	47.37593
1999	47.5949
2000	47.71117
2001	47.71103
2002	47.52899
2003	47.45914
2004	47.36296
2005	47.52551
2006	47.72466
2007	47.76727
2008	47.71157
2009	47.63605
2010	47.76895
2011	47.75868
2012	47.78803
2013	47.86848
2014	47.79125
2015	47.84602
2016	47.77079
2017	47.65731