Year	Percent
1995	5.912
1996	5.987
1997	6.133
1998	5.89
1999	5.934
2000	5.941
2001	6.165
2002	6.482
2003	6.398
2004	5.998
2005	6.013
2006	6.07
2007	6.134
2008	5.973
2009	6.183
2010	7.421