Year	Percent
1993	4.35367
1994	0.6627
1995	0.57633
1997	3.19895
1998	36.08534
1999	0.05246
2000	30.10865
2001	28.29598
2002	8.28675
2003	0.6624
2004	0.48354
2005	0.11133
2006	0.02467
2007	39.56243
2008	11.05681