Year	Percent
1995	6.258
1996	5.572
1997	5.179
1998	6.033
1999	5.764
2000	5.79
2001	5.811
2002	5.866
2003	5.847
2004	6.285
2005	6.163
2006	5.859
2007	5.255
2008	5.249
2009	6.143
2010	5.69