Year Per 100,000 People 1961 2.1056 1963 2.0972 1964 1.4763 1965 1.5659 1966 3.4842 1967 4.035 1968 4.1801 1969 5.0936 1970 5.1258 1971 4.9429 1972 8.4309 1973 8.0163 1974 5.9537 1975 6.0486 1977 7.2053 1978 7.4777 1979 7.6899 1980 7.2446 1982 8.9475 1984 10.1763 1985 9.4462 1986 8.4192 1987 7.8302 1988 9.2432 1991 9.496