Year	% female
1981	43.60493
1986	45.88274
1991	49.41071
1992	49.079
1993	49.01677
1994	49.08839
1995	47.92438
1996	48.90514
1997	48.67563
1999	49.37381
2000	49.49377
2001	49.68881
2002	49.30257
2003	49.21931
2004	49.74673
2005	49.27695
2006	50.14296
2007	49.0857
2008	48.69095
2009	48.64991
2010	48.17898
2011	48.15995
2012	48.15727
2013	48.22228
2014	47.90819
2015	47.77983
2016	47.53969
2017	47.39811
2018	47.50196