Year	% female
1973	43.2083
1974	43.07191
1975	45.07183
1976	46.09192
1977	46.30188
1978	46.14798
1979	45.88996
1980	45.85483
1981	45.65226
1982	45.27925
1983	45.10588
1984	45.2118
1985	45.29686
1986	46.03127
1987	46.23754
1988	46.44954
1989	46.64539
1990	46.93242
1991	47.06179
1992	47.25873
1993	47.29978
1994	47.39332
1995	47.54274
1996	47.64959
1997	47.71495
1998	47.75904
1999	47.73287
2000	47.75928
2001	47.76924
2002	47.6772
2003	47.59625
2004	47.48415
2005	47.34963
2006	47.26064
2007	47.14015
2008	47.04331
2009	46.99487
2010	46.90468
2011	46.88229
2012	46.96402
2013	47.05973
2014	47.1245
2015	47.05039
2016	47.1103
2017	47.1405
2018	47.17886