Year	% female
1981	50.52418
1986	49.98715
1989	49.97111
1990	50.02856
1991	50.95851
1992	51.3035
1993	51.44645
1994	51.50515
1999	50.96446
2000	50.84985
2001	50.80702
2002	50.74099
2003	50.80295
2004	50.85423
2005	50.8738
2006	50.80227
2007	50.69277
2008	50.46907
2009	50.50488
2011	50.37534
2012	50.3888
2013	50.26551
2014	50.12598
2015	50.03252
2016	50.06963
2017	49.48229