Year	Percent
1995	3.926
1996	5.162
1997	5.644
1998	5.868
1999	6.516
2000	6.063
2001	5.695
2002	5.056
2003	5.095
2004	4.815
2005	6.52
2006	5.52
2007	6.766
2008	6.25
2009	4.679
2010	5.071