Year Per 100,000 People 1953 11.3033 1954 11.6239 1955 13.5457 1956 17.2501 1957 16.8531 1958 17.607 1959 22.9056 1960 22.7441 1961 20.3318 1962 19.8968 1963 20.863 1964 23.2474 1965 22.5002 1966 22.7741 1967 23.3531 1968 31.5177 1969 33.0495 1970 27.1341 1971 25.9835 1972 25.1323 1973 23.4212 1974 21.1527 1975 20.6835 1976 21.7114 1977 18.5203 1978 17.9232 1979 19.5793 1980 19.1829 1981 18.1927 1982 16.8502 1983 17.3951 1984 15.8975 1985 17.2721 1986 16.8681 1987 14.9212 1988 15.7386 1989 17.6007 1990 22.9924 1991 24.1909