Year	Per 100,000 People
1952	23.1929
1953	24.0534
1954	25.1539
1955	24.4042
1956	24.2073
1957	23.4187
1958	24.5821
1959	23.7783
1960	23.7798
1961	23.4133
1962	23.2032
1963	24.4401
1964	25.3763
1965	24.9289
1966	25.867
1967	27.9602
1968	26.3552
1969	26.4371
1970	27.1315
1971	26.3051
1972	25.0641
1973	26.0229
1974	26.2948
1975	26.0801
1976	27.1788
1977	28.0253
1978	27.4945
1979	26.254
1980	25.2112
1981	26.3198
1982	26.2717
1983	25.1902
1984	24.577
1985	25.0497
1986	22.4817
1987	22.3548
1988	20.6955
1989	19.4592
1990	18.6355