Year	Percent
1995	5.238
1996	7.841
1997	7.03
1998	6.202
1999	6.048
2000	6.293
2001	6.393
2002	6.317
2003	6.25
2004	6.28
2005	6.014
2006	5.887
2007	5.809
2008	5.564
2009	5.503
2010	4.978