Year Per 100,000 People 1961 0.8912 1963 1.4723 1964 3.1789 1965 2.3855 1968 1.779 1969 4.9587 1973 3.9762 1974 2.0305 1975 1.9826 1976 1.5929 1977 2.0627 1978 0.3369