Year Per 100,000 People 1950 31.2006 1951 27.667 1952 26.9272 1953 29.3083 1954 33.7192 1955 35.8325 1956 34.0441 1957 33.2006 1958 33.9925 1959 29.7977 1960 27.6709 1961 24.873 1962 22.7467 1963 21.0339 1964 19.4478 1965 19.2636 1966 19.1367 1967 17.6564 1968 17.6541 1969 17.5152 1970 18.269 1971 18.525 1972 20.1359 1973 20.7333 1974 20.4796 1975 21.647 1976 21.2296 1977 21.9221 1978 21.7844 1979 22.156 1980 21.6282 1981 21.0672 1982 21.4516 1983 26.9909 1984 25.5363 1985 23.7812 1986 25.1017 1987 22.8107 1988 21.0353 1989 18.7915 1990 17.6482 1991 17.5416 1992 18.6393 1993 18.3744 1994 18.9493 1995 18.9179 1996 19.4474 1997 20.4873 1998 28.4211 1999 28.3534 2000 27.1326 2001 26.2326 2002 26.9161 2003 29.3954 2004 27.6061 2005 28.1477 2006 27.1086 2007 27.5489 2008 27.3789 2009 28.251 2010 26.8531 2011 25.6416 2012 23.9824 2013 23.5298 2014 22.1103 2015 20.9569