Year	% female
1991	50.6549
1992	50.40904
1993	51.16427
1994	51.06143
1995	52.02004
1996	52.18206
1997	52.4045
1998	52.12276
2000	52.56775
2001	52.83777
2002	50.7781
2003	50.29189
2004	49.67077
2005	49.69411
2006	49.65717
2007	49.77512
2008	49.33553
2009	48.70159
2010	48.45961
2011	48.54938
2013	48.82843
2014	48.66952
2015	48.17869
2016	47.93462
2018	47.77225