Year	Per 100 People
1990	11.48
1991	13.39
1992	15.48
1993	17.93
1994	19.21
1995	26.78
1996	30.48
1997	36.04
1998	37.77
1999	45.13
2000	50.57
2001	54.1
2002	57.63
2003	61.4
2004	65.44
2005	69.46
2006	72.75