Year	Percent
1994	0.558
1995	0.7903
1996	7.564
1997	2.729
1998	3.231
1999	41.33
2000	27.16
2001	4.764
2002	2.358
2003	9.608
2004	6.827
2005	10.44
2006	7.821
2007	6.477