Year	% female
1972	47.72076
1973	47.92412
1974	47.83573
1989	48.31132
1990	48.33263
1991	48.41218
1992	48.28176
1993	48.40986
1994	48.44336
1995	48.54096
1996	48.55648
1997	48.26981
1998	48.18885
1999	48.31698
2000	48.41222
2001	48.49526
2002	48.53619
2003	48.58967
2004	48.59428
2005	48.58575
2006	48.57903
2007	48.54963
2008	48.49295
2009	48.47433
2010	48.50548
2011	48.59465
2012	48.75597
2013	48.75302
2014	48.74074
2017	48.71095