Year	% female
1971	39.6644
1973	42.69966
1982	49.84312
1985	48.35728
1992	51.05149
1994	50.9108
1995	52.01285
1996	51.57581
1997	51.63979
1998	51.64061
1999	51.67621
2000	51.51348
2001	51.79947
2002	51.59146
2003	51.36322
2004	51.49899
2005	51.60946
2006	51.61928
2007	52.03664
2008	51.82078
2009	51.7739
2010	52.03353
2011	51.82797
2012	51.69689
2013	51.51559
2014	51.43982
2015	51.02124
2016	51.23687
2017	50.83173
2018	51.19602