Year	Percent
1995	9.111
1996	9.332
1997	9.714
1998	9.57
1999	9.518
2000	9.681
2001	10.23
2002	9.526
2003	9.961
2004	10.35
2005	10.7
2006	11.29
2007	13.18
2008	15.73
2009	14.43
2010	14.69