Year	Percent
1995	8.233
1996	7.738
1997	8.888
1998	7.934
1999	8.982
2000	9.487
2001	9.709
2002	9.87
2003	10.89
2004	10.15
2005	9.496
2006	7.583
2007	7.454
2008	7.018
2009	7.242
2010	7.169