Year	% female
1974	17.8151798248291
1994	22.1834297180176
1995	29.7982692718506
1996	36.9811706542969
1997	30.9945392608643
1998	33.4230995178223
1999	33.330078125
2000	33.3333282470703
2001	34.7260894775391
2002	35.3286209106445
2003	38.2985382080078
2004	39.006591796875
2005	39.370491027832
2006	38.2885513305664
2007	39.2142601013184
2008	38.3470497131348
2009	37.629150390625