Year	Percent
1995	7.105
1996	7.724
1997	8.031
1998	7.806
1999	8.383
2000	8.528
2001	8.079
2002	9.688
2003	9.681
2004	9.077
2005	12.41
2006	12.1
2007	11.79
2008	11.88
2009	11.57
2010	11.56