Year Per 100,000 People 1950 39.9045 1951 40.3004 1952 39.0889 1953 39.1382 1954 35.7279 1955 36.4776 1956 36.4708 1957 35.6847 1958 33.2881 1959 32.7923 1960 32.2697 1961 31.7105 1962 33.2856 1963 34.0984 1964 35.6626 1965 36.0043 1966 36.8944 1967 36.6906 1968 36.322 1969 34.77 1970 34.1022 1971 32.8319 1972 33.1812 1973 30.8533 1974 23.9598 1975 22.778 1976 22.8127 1977 22.5115 1978 22.414 1979 31.4567 1980 30.2252 1981 30.0692 1982 27.7893 1983 28.9887 1984 30.2124 1985 30.0482 1986 30.6664 1987 31.5021 1988 31.494 1989 30.3546 1990 29.8587 1991 28.6891 1992 28.076 1993 28.7437 1994 28.8542 1995 29.1509 1996 29.72 1997 30.116 1998 30.5166 1999 18.9506 2000 18.2141 2001 17.8485 2002 18.4822 2003 17.8662 2004 17.5559 2005 17.4441 2006 16.662 2007 15.716