Year	Percent
1995	3.085
1996	3.247
1997	4.847
1998	4.81
1999	3.453
2000	4.039
2001	3.71
2002	3.477
2003	3.796
2004	3.579
2005	3.195
2006	2.665
2007	2.499
2008	1.927
2009	2.488
2010	2.496