Year Per 100,000 People 1952 15.9589 1953 16.438 1954 17.5338 1955 17.2053 1956 16.7498 1957 16.406 1958 16.9156 1959 16.5995 1960 16.6402 1961 16.6474 1962 16.2574 1963 17.0725 1964 17.7862 1965 17.5653 1966 18.1159 1967 19.0397 1968 18.4265 1969 18.7675 1970 19.2811 1971 18.7815 1972 17.8591 1973 18.549 1974 18.6754 1975 18.5415 1976 19.2046 1977 19.9979 1978 19.3984 1979 18.423 1980 17.601 1981 18.3196 1982 17.9703 1983 17.6463 1984 16.7498 1985 16.7856 1986 15.2381 1987 15.0431 1988 13.8087 1989 12.8764 1990 12.3629