Year	Per 100 People
1990	21.21
1991	22.85
1992	24.71
1993	26.61
1994	29.06
1995	32.01
1996	35.45
1997	39.57
1998	44.55
1999	50.13
2000	56.66
2001	62.02
2004	75.76
2005	77.26
2006	79.89