Year | Value | 2022 | 56.169 | 2021 | 56.628 | 2020 | 57.077 | 2019 | 57.516 | 2018 | 57.945 | 2017 | 58.364 | 2016 | 58.772 | 2015 | 59.171 | 2014 | 59.568 | 2013 | 59.964 | 2012 | 60.358 | 2011 | 60.752 | 2010 | 61.144 | 2009 | 61.534 | 2008 | 61.923 | 2007 | 62.311 | 2006 | 62.697 | 2005 | 63.081 | 2004 | 63.404 | 2003 | 63.648 | 2002 | 63.891 | 2001 | 64.133 | 2000 | 64.374 | 1999 | 64.616 | 1998 | 64.856 | 1997 | 65.095 | 1996 | 65.333 | 1995 | 65.571 | 1994 | 65.808 | 1993 | 66.045 | 1992 | 66.28 | 1991 | 66.515 | 1990 | 66.748 | 1989 | 66.981 | 1988 | 67.213 | 1987 | 67.445 | 1986 | 67.675 | 1985 | 68.003 | 1984 | 68.445 | 1983 | 68.885 | 1982 | 69.32 | 1981 | 69.752 | 1980 | 70.181 | 1979 | 70.606 | 1978 | 71.028 | 1977 | 71.446 | 1976 | 71.86 | 1975 | 72.271 | 1974 | 72.863 | 1973 | 73.679 | 1972 | 74.478 | 1971 | 75.263 | 1970 | 76.031 | 1969 | 76.782 | 1968 | 77.516 | 1967 | 78.235 | 1966 | 78.936 | 1965 | 79.621 | 1964 | 80.288 | 1963 | 80.94 | 1962 | 81.533 | 1961 | 82.097 | 1960 | 82.648 |
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