Year	Percent
1995	14.69
1996	12.26
1997	13.6
1998	15.59
1999	15.83
2000	17.12
2001	14.66
2002	12.67
2003	9.927
2004	7.854
2005	6.575
2006	5.34
2007	5.568
2008	5.204
2009	4.928
2010	5.502