Year	Percent
1995	12.41
1996	12.75
1997	12.4
1998	10.89
1999	11.99
2000	12.83
2001	10.37
2002	10.41
2003	10.31
2004	11.49
2005	10.51
2006	10.47
2007	10.79
2008	10.24
2009	10.55
2010	10.25