Year	Per 100 People
1990	1.16
1991	1.45
1992	2.42
1993	2.91
1994	4.36
1995	5.32
1996	6.78
1997	8.24
1998	9.71
1999	10.7
2000	12.17
2001	14.63
2002	17.57
2003	20.51
2004	23.95
2005	27.4