Year	% female
1971	51.16926
1972	48.70012
1973	48.76188
1974	48.70091
1975	48.72426
1976	48.71722
1977	48.64561
1978	48.6838
1979	48.71937
1980	48.79699
1981	48.75931
1982	48.8398
1983	48.87834
1984	48.93454
1985	48.88574
1986	48.85068
1987	48.93681
1988	48.76367
1989	48.75858
1990	48.78236
1991	48.7141
1992	48.75533
1993	48.83351
1994	48.78489
1995	48.71427
1996	48.74981
1997	48.79847
1998	48.78228
1999	48.66125
2000	48.74239
2001	48.69125
2002	48.69075
2003	48.64153
2004	48.67571
2005	48.71594
2006	48.80539
2007	48.70307
2008	48.7659
2009	48.8222
2010	48.86806
2011	48.89579
2012	49
2013	48.90386
2014	48.9161
2015	48.84511
2016	48.8087
2017	48.75719