Year	Per 100,000 People
1968	12.1616
1969	14.6796
1978	24.2614
1979	31.6829
1980	27.548
1981	27.5514
1982	27.1226
1983	24.9494
1984	24.0112
1985	22.9678
1986	22.1963
1987	23.0699
1988	23.3456
1989	23.5232
1990	24.6801