Year	Percent
1993	0.03511
1994	0.02649
1995	0.9869
1996	0.2384
1997	0.352
1998	0.2864
1999	0.4425
2000	1.185
2001	0.8668
2002	1.158
2003	1.059
2004	1.206
2005	2.556
2006	2.899
2007	2.205