Year	Percent
1995	4.369
1996	4.51
1997	4.628
1998	5.577
1999	5.431
2000	4.562
2001	5.22
2002	3.91
2003	6.508
2004	6.959
2005	6.603
2006	5.701
2007	5.985
2008	5.742
2009	6.077
2010	5.068