Year	Percent
1995	4.47
1996	4.628
1997	4.422
1998	5.1
1999	6.197
2000	6.076
2001	6.312
2002	6.529
2003	5.57
2004	5.336
2005	5.58
2006	4.797
2007	4.695
2008	4.923
2009	5.096
2010	4.844