Year	% female
1970	47.48408
1971	47.47235
1972	47.52712
1973	47.73481
1974	47.57112
1975	48.08854
1976	48.17619
1977	48.31694
1978	48.48406
1979	48.51119
1980	48.69741
1981	49.08057
1982	48.80609
1983	49.10348
1984	49.05758
1985	49.12746
1986	49.22164
1987	49.22842
1988	49.18984
1989	49.17546
1990	49.1587
1991	49.20346
1992	49.2694
1993	49.23246
1994	48.98043
1995	49.00419
1996	49.08289
1997	48.97146
1998	48.93855
1999	48.94922
2000	48.87546
2001	48.92871
2002	48.87639
2003	48.889
2004	48.91342
2005	48.89026
2006	48.84754
2007	48.85972
2008	48.83307
2009	48.62114
2010	48.55649
2011	48.4869
2012	48.44655
2013	48.5342
2014	48.5191
2015	48.4694
2016	48.44267
2017	48.31893
2018	48.32282