Year	Per 100,000 People
1952	0.397
1953	0.4178
1954	0.4593
1955	0.5138
1956	0.5392
1957	0.4395
1958	0.5355
1959	0.4132
1960	0.4433
1961	0.2939
1962	0.4435
1963	0.3459
1964	0.4105
1965	0.4682
1966	0.5211
1967	0.4072
1968	0.4933
1969	0.593
1970	0.6565
1971	0.535
1972	0.4051
1973	0.447
1974	0.4998
1975	0.5102
1976	0.6584
1977	0.6112
1978	0.6919
1979	0.5239
1980	0.5368
1981	0.755
1982	0.6537
1983	0.705
1984	0.4895
1985	0.5686
1986	0.4168
1987	0.3741
1988	0.2903
1989	0.2217
1990	0.1724