Year	Percent
1995	6.223
1996	6.569
1997	6.902
1998	6.837
1999	6.971
2000	6.114
2001	6.177
2002	6.167
2003	6.524
2004	6.472
2005	7.319
2006	7.199
2007	6.941
2008	6.761
2009	7.245
2010	6.778