Year	Percent
1995	6.711
1996	7.47
1997	7.469
1998	8.038
1999	8.224
2000	8.28
2001	8.416
2002	8.386
2003	7.459
2004	7.064
2005	6.911
2006	6.624
2007	6.9
2008	7.509
2009	8.439
2010	7.959