Year	Per 100 People
1990	0.84
1991	1.26
1992	2.18
1993	2.59
1994	3.23
1995	3
1996	3.64
1997	4.81
1998	6.19
1999	8.01
2000	9.57
2001	12.77
2002	15.02
2003	17.19
2004	19.68
2005	22.09
2006	23.41