Year	Percent
1995	6.432
1996	6.951
1997	6.72
1998	7.062
1999	5.755
2000	6.185
2001	5.867
2002	6.954
2003	5.752
2004	5.552
2005	5.607
2006	5.72
2007	5.67
2008	5.716
2009	8.556
2010	8.498