Year	Percent
1993	27.228
1994	33.53118
1995	21.26631
1996	26.39237
1997	27.35748
1998	24.34379
1999	28.52936
2000	39.51631
2001	51.41089
2002	62.27485
2010	29.44553
2011	34.68761