Year per 1,000 people 1960 45.776 1961 45.912 1962 45.356 1963 44.783 1964 44.093 1965 42.177 1966 40.516 1967 39.589 1968 39.745 1969 40.089 1970 39.483 1971 39.916 1972 39.363 1973 39.798 1974 40.323 1975 42.399 1976 44.174 1977 45.64 1978 46.835 1979 47.86 1980 48.83 1981 48.85 1982 48.742 1983 48.489 1984 48.103 1985 47.616 1986 47.074 1987 46.539 1988 46.051 1989 45.625 1990 44.462 1991 44.112 1992 44.179 1993 44.064 1994 44.008 1995 43.709 1996 43.461 1997 43.352 1998 43.028 1999 42.727 2000 42.493 2001 42.132 2002 42.257 2003 42.048 2004 41.655 2005 41.358 2006 41.032 2007 40.911 2008 40.003 2009 39.1 2010 38.427 2011 38.303 2012 37.945 2013 37.46 2014 36.472 2015 35.519 2016 34.502 2017 33.285 2018 32.657 2019 32.093 2020 31.605 2021 31.087 2022 30.611