Year per 1,000 people 1960 47.554 1961 47.644 1962 47.89 1963 47.873 1964 47.921 1965 47.913 1966 47.818 1967 47.652 1968 47.412 1969 47.103 1970 47.028 1971 46.682 1972 46.307 1973 46.029 1974 45.959 1975 45.868 1976 45.771 1977 45.546 1978 45.266 1979 45.073 1980 44.967 1981 44.979 1982 44.984 1983 44.989 1984 44.651 1985 44.35 1986 44.052 1987 43.754 1988 43.635 1989 43.213 1990 42.662 1991 42.003 1992 41.697 1993 40.914 1994 41.484 1995 40.561 1996 42.342 1997 40.646 1998 39.359 1999 38.19 2000 37.617 2001 36.827 2002 37.239 2003 36.8 2004 37.272 2005 36.677 2006 36.24 2007 35.301 2008 34.667 2009 34.402 2010 33.692 2011 33.114 2012 32.424 2013 31.719 2014 31.214 2015 30.417 2016 29.91 2017 29.421 2018 29.105 2019 28.941 2020 28.706 2021 28.624 2022 28.426