Year	Percent
1995	7.326
1996	7.079
1997	6.829
1998	7.176
1999	7.323
2000	7.177
2001	7.241
2002	7.592
2003	8.363
2004	8.057
2005	8.314
2006	8.125
2007	7.56
2008	7.281
2009	7.575
2010	7.326