Year	% female
1971	47.61343
1972	47.92769
1973	47.94388
1974	48.12295
1975	47.98303
1976	48.21158
1977	49.33978
1978	49.24147
1979	49.13543
1980	49.15711
1981	50.43537
1982	47.4566
1984	47.33118
1986	48.13614
1987	48.51237
1988	48.76984
1990	48.82585
1991	49.0885
1992	48.75413
1993	49.43337
1994	49.55545
1995	49.62382
1999	48.2896
2000	48.30984
2001	48.31146
2002	48.0244
2003	48.30784
2004	48.33874
2005	48.68128
2006	48.66472
2007	48.46697
2008	48.70355
2009	48.77901
2010	48.93094
2011	49.11526
2012	48.6002
2013	48.66896
2014	49.17479
2015	48.65295
2016	48.40912