Year	Percent
1995	40.44
1996	47
1997	58.06
1998	56.43
1999	26.65
2000	27.7
2001	28.09
2002	29.16
2003	32.03
2004	50.66
2005	49.31
2006	46.87
2007	45.39
2008	36.21
2009	34.68
2010	32.94