Year	Percent
1995	2.963
1996	2.962
1997	3.057
1998	3.343
1999	4.127
2000	4.259
2001	4.514
2002	4.297
2003	4.024
2004	3.695
2005	3.545
2006	3.808
2007	3.829
2008	3.192
2009	4.375
2010	4.292