Year per 1,000 people 1960 42.934 1961 42.948 1962 43.015 1963 43.043 1964 43.251 1965 43.448 1966 43.773 1967 43.987 1968 44.257 1969 44.076 1970 43.73 1971 43.501 1972 43.086 1973 42.618 1974 42.285 1975 41.899 1976 41.995 1977 42.421 1978 42.977 1979 43.588 1980 44.08 1981 44.598 1982 44.931 1983 45.221 1984 45.548 1985 45.89 1986 46.169 1987 46.531 1988 46.509 1989 46.527 1990 46.292 1991 45.98 1992 45.407 1993 44.926 1994 44.539 1995 44.482 1996 44.266 1997 43.796 1998 43.514 1999 43.397 2000 43.259 2001 42.809 2002 42.635 2003 42.765 2004 42.545 2005 42.633 2006 42.771 2007 42.776 2008 42.925 2009 43.019 2010 43.237 2011 43.223 2012 43.006 2013 42.414 2014 41.921 2015 41.044 2016 41.209 2017 41.602 2018 41.831 2019 41.92 2020 42.175 2021 42.68 2022 42.344