Year	Per 100 People
1990	6.63
1991	7.43
1992	9.43
1993	10.69
1994	14.82
1995	20.13
1996	26.48
1997	33.49
1998	37.99
1999	43.33
2000	48.31
2001	51.26
2002	55.97
2003	60.19
2004	64.36
2005	68.43
2006	72.61