Year	Percent
1995	18.88
1996	15.75
1997	13.92
1998	10.09
1999	10.52
2000	13.44
2001	11.8
2002	15.24
2003	12.33
2004	13.51
2005	8.979
2006	14.38
2007	11.72
2008	11.03
2009	11.33
2010	12.18