Year	Percent
1995	10.31
1996	15.08
1997	9.321
1998	5.094
1999	9.864
2000	7.776
2001	7.083
2002	7.101
2003	6.529
2004	8.95
2005	6.504
2006	5.545
2007	6.569
2008	7.742
2009	8.678
2010	11.29