Year	Percent
1995	23.56
1996	23.84
1997	23.24
1998	28.7
1999	20.78
2000	19.08
2001	19.24
2002	19.99
2003	21.98
2004	22.7
2005	22.01
2006	22.75
2007	21.25
2008	21.25
2009	21.25
2010	21.25