Year	Per 100 People
1990	0.42
1991	1.34
1992	2.68
1993	3.79
1994	4.89
1995	5.6
1996	7.24
1997	8.24
1998	9.72
1999	10.96
2000	11.21
2001	11.62
2002	11.69
2003	15.84
2004	17.27
2005	22.33