Year Per 100,000 People 1963 23.7137 1964 23.1603 1965 23.3713 1966 29.7866 1967 53.9883 1968 42.4886 1969 28.7307 1970 45.4852 1971 41.3116 1974 1.1255 1977 1.1088 1979 39.7774 1980 85.4629 1981 253.9308 1984 6.0193