Year	% female
1971	46.68527
1972	51.64172
1973	53.71398
1974	51.5926
1990	54.56535
1992	53.92888
1993	54.46584
1999	51.50174
2000	50.84547
2001	50.50871
2002	50.33351
2003	50.39445
2004	49.73048
2005	49.6227
2006	49.60392
2007	49.40543
2008	49.40522
2009	49.43764
2010	48.86201
2011	48.59871
2012	48.71795
2013	48.43731
2014	48.22769
2015	48.3143
2016	48.63439
2017	48.83501
2018	48.80025