Year	Per 100 People
1990	10.47
1991	12.48
1992	14.44
1993	17.07
1994	19.65
1995	21.84
1996	24.67
1997	27.46
1998	31.2
1999	36.51
2000	42.03
2001	45.82
2002	48.86
2003	52.11
2004	70.06
2005	87.69
2006	94.58