Year	Per 100,000 People
1973	23.8017
1974	21.1564
1977	27.8282
1980	22.5502
1981	24.0221
1982	22.0363
1983	22.0176
1984	21.1619
1985	19.6155
1986	18.0604
1987	19.0091
1988	18.9733
1989	19.4502
1990	36.4996