Year	Percent
1995	5.892
1996	4.679
1997	4.169
1998	5.245
1999	2.304
2000	1.926
2001	1.994
2002	3.758
2003	2.421
2004	2.127
2005	1.698
2006	1.816
2007	1.903
2008	2.699
2009	4.483
2010	4.481