Year Per 100,000 People 1961 0.7775 1962 1.3708 1963 1.497 1964 0.8368 1965 1.6709 1968 1.9047 1969 9.2903 1973 0.9884 1974 1.6977 1975 1.2326 1976 0.4763 1977 0.962 1978 1.1607