Year	Percent
1995	2.56
1996	4.042
1997	4.806
1998	5.339
1999	5.834
2000	6.35
2001	6.045
2002	6.277
2003	6.164
2004	6.883
2005	6.841
2006	6.732
2007	6.877
2008	6.749
2009	6.883
2010	6.547