Year	Per 100,000 People
1968	9.6953
1969	10.6929
1978	8.5417
1979	8.4848
1980	8.5747
1981	9.5847
1982	10.5186
1983	9.7823
1984	10.6652
1985	10.1244
1986	9.5835
1987	9.9082
1988	9.4913
1989	9.275
1990	7.8456