Year	Per 100,000 People
1961	7.6889
1963	9.5401
1964	8.3388
1965	7.697
1966	6.5449
1967	8.966
1968	16.6135
1969	19.3465
1970	24.9158
1971	22.578
1972	21.6156
1973	24.965
1974	27.6803
1975	28.0845
1977	32.2856
1978	32.3815
1979	32.0931
1980	37.2597
1982	32.6144
1984	29.8605
1985	26.9809
1986	27.0406
1987	24.6781
1988	28.2598
1991	30.0092