Year	Percent
1995	6.148
1996	5.693
1997	5.636
1998	5.714
1999	5.763
2000	5.954
2001	5.828
2002	5.85
2003	5.91
2004	6.199
2005	6.169
2006	6.235
2007	6.159
2008	6.163
2009	6.353
2010	6.207