Year Per 100,000 People 1955 3.173 1956 2.7508 1957 2.7619 1958 3.2586 1959 4.6486 1960 4.6196 1963 2.161 1964 2.6081 1965 3.3847 1966 4.6752 1967 4.8838 1968 3.4529 1969 3.1846 1970 4.558 1971 2.7497 1972 3.2613 1973 2.1572 1974 2.3692 1975 3.0606 1976 2.9293 1977 1.7034 1978 0.9683 1980 1.7036 1981 3.137 1982 3.9637 1983 2.8319 1984 2.7456 1985 4.0973 1986 3.4389 1987 2.9954 1988 3.4311 1989 3.9496 1990 6.3008