Year	% female
1981	48.75905
1986	48.66554
1989	48.31366
1990	49.52681
1991	50.30797
1992	50.30818
1993	50.54589
1994	51.18458
1995	51.11556
1996	52.41706
1999	50.71123
2000	50.83417
2001	50.04907
2002	50.08105
2003	50.17686
2004	50.18144
2005	50.04475
2006	50.11537
2007	50.19173
2008	50.02213
2009	50.01233
2010	49.73391
2011	49.73198
2012	49.51004
2013	49.56245
2014	49.63595
2015	49.74407
2016	49.74139
2017	49.67852
2018	49.73959