Year Per 100,000 People 1961 13.7923 1963 20.0393 1964 17.0915 1965 18.852 1966 18.7089 1967 22.8729 1968 16.0251 1969 24.6435 1970 25.3444 1971 22.1648 1972 29.0689 1973 34.1464 1974 31.8428 1975 32.3627 1977 36.8762 1978 37.5032 1979 37.5918 1980 45.3682 1982 37.5138 1984 31.3678 1985 30.8174 1986 35.843 1987 29.6974 1988 35.1455 1991 32.3476