Year	Percent
1995	2.148
1996	2.124
1997	1.888
1998	1.838
1999	1.799
2000	2.118
2001	2.077
2002	2.375
2003	2.278
2004	2.28
2005	2.12
2006	2.058
2007	1.952
2008	2.04
2009	2.116
2010	1.969