Year	Percent
1995	8.195
1996	7.672
1997	7.607
1998	7.771
1999	7.889
2000	8.11
2001	8.407
2002	8.069
2003	9.07
2004	8.708
2005	9.213
2006	9.736
2007	9.756
2008	10.46
2009	10.69
2010	10.69