Year	Percent
1995	2.622
1996	2.808
1997	2.704
1998	2.354
1999	2.367
2000	2.35
2001	2.325
2002	2.862
2003	2.644
2004	2.854
2005	2.909
2006	3.285
2007	3.108
2008	3.094
2009	3.332
2010	3.625