Year	Percent
1995	5.25
1996	5.141
1997	5.313
1998	5.205
1999	4.967
2000	4.741
2001	5.599
2002	4.753
2003	4.849
2004	6.136
2005	7.018
2006	4.4
2007	6.013
2008	5.588
2009	4.96
2010	5.223