Year	Percent
1984	1.219
1985	0.6142
1986	1.339
1987	0.4247
1988	0.1508
1989	0.8517
1990	0.5672
1991	0.3417
1992	4.574
1993	0.2441
1994	0.1704
1995	0.339
1996	0.08611
1997	0.1994
1998	2.789
1999	4.444
2000	5.034
2001	2.96
2002	3.852
2003	3.852
2004	5.062
2005	5.107
2006	4.243
2007	1.754