Year	% female
1972	39.30114
1978	33.9469
1991	49.47935
1992	48.6704
1994	48.71252
1995	49.38833
1996	50.3268
1997	50.51975
1998	48.52335
1999	50.91918
2000	50.90475
2001	48.36755
2008	47.99337
2009	48.25986
2010	49.28309
2011	48.66013
2012	48.80952
2013	48.22485
2014	48.78444
2015	49.19624
2016	48.14703
2017	48.92002
2018	48.9784
2019	49.76261