Year	% female
1973	49.3233
1974	49.24961
1975	49.29537
1976	49.27085
1977	49.2079
1978	49.13614
1979	49.07595
1980	49.03133
1981	48.99566
1982	48.89981
1983	48.96457
1984	49.02602
1985	48.99423
1986	49.0003
1987	49.13073
1988	49.1319
1989	49.10245
1990	49.10154
1991	49.08649
1992	49.1103
1993	48.54683
1994	48.60142
1995	48.58263
1996	48.62439
1998	48.60476
1999	48.56781
2000	48.61583
2001	48.61477
2002	48.61648
2003	48.63092
2004	48.53879
2005	48.55748
2006	48.53652
2007	48.51587
2008	48.48253
2009	48.46977
2010	48.44429
2011	48.39938
2012	48.48262
2013	48.52524
2014	48.63092
2015	48.58554
2016	48.52791
2017	48.5495