Year	% female
1981	53.24568
1982	51.20655
1983	51.20774
1984	50.63945
1985	50.63999
1986	50.04572
1987	49.85564
1988	48.72999
1989	48.72998
1990	49.85139
1998	51.30944
1999	51.27764
2001	51.32761
2002	51.4491
2003	51.48035
2004	51.56223
2005	51.72559
2006	51.64852
2007	51.38601
2008	51.1194
2009	50.87626
2014	50.58583
2015	50.35619
2016	50.51536
2017	51.20434