Year	Percent
1984	0.45
1985	0.3107
1991	0.03396
1992	0.08175
1993	0.4609
1994	0.5254
1995	0.5214
1999	0.965
2000	1.345
2001	1.19
2002	0.6276
2003	0.9982
2004	2.823
2005	5.302
2006	5.505
2007	4.07