Year	% female
1971	49.10414
1972	49.11579
1973	49.09449
1974	48.97603
1975	48.95108
1976	48.91588
1977	48.87374
1978	48.79979
1979	48.67205
1980	48.71196
1981	48.76725
1982	48.77275
1983	48.85455
1984	48.79802
1985	49.15647
1986	48.77608
1987	48.77342
1988	48.75977
1989	48.76077
1990	48.74857
1991	48.76054
1992	48.75702
1993	49.01758
1994	49.01446
1995	49.00585
1996	49.01214
1997	49.02828
1998	49.52517
1999	49.42558
2000	49.32616
2001	49.32642
2002	49.38952
2003	49.36339
2004	48.62528
2005	48.66879
2006	48.66738
2007	48.64087
2008	48.56617
2009	48.56806
2010	48.55878
2011	48.59029
2012	48.61604
2013	50.09054
2014	50.02324
2015	49.69649
2016	49.30512
2017	48.96816