Year	Per 100,000 People
1981	10.1971
1982	12.3067
1985	10.1888
1986	9.295
1987	10.8662
1988	9.9511
1989	10.4878
1990	3.0402
1991	3.4785
1992	4.622
1993	3.7746
1994	1.6378
1995	1.5337
1996	2.3997
1997	2.6344
1998	1.4482
1999	1.0066
2000	1.644
2007	0.9595