Year	Per 100,000 People
1968	5.111
1969	5.8066
1978	7.8483
1979	12.9962
1980	11.4389
1981	11.3302
1982	10.9463
1983	9.8513
1984	9.9793
1985	9.8678
1986	9.8859
1987	9.028
1988	9.006
1989	9.0425
1990	8.0559