Year	% female
1981	50
1986	49.92343
1989	49.92076
1990	49.90758
1991	49.90099
1992	49.89858
1999	35.56873
2000	35.52056
2001	35.92555
2002	36.06532
2003	35.64608
2004	35.04585
2005	36.22766
2006	35.31076
2007	32.6239
2009	58.28997
2010	41.92167
2011	43.6979
2012	44.47759
2013	46.37529
2014	45.40991
2015	45.71791
2016	41.84187
2017	41.10403
2018	41.02907