Year	Percent
1995	8.589
1996	8.554
1997	8.438
1998	8.37
1999	8.617
2000	7.879
2001	8.804
2002	9.099
2003	8.932
2004	8.681
2005	9.662
2006	9.736
2007	9.828
2008	10.14
2009	10.57
2010	10.25