Year	Per 100 People
1990	0.38
1991	1.03
1992	1.39
1993	1.37
1994	1.8
1995	3.2
1996	5.27
1997	7.83
1998	8.61
1999	9.37
2000	10.12
2001	10.85
2002	14.88
2003	15.55
2004	16.22
2005	16.87
2006	17.52