Year	Percent
1995	4.733
1996	4.822
1997	4.894
1998	5.597
1999	9.204
2000	9.164
2001	8.76
2002	9.357
2003	9.068
2004	8.716
2005	8.804
2006	9.479
2007	8.383
2008	7.082
2009	6.396
2010	7.019