Year | Value | 2022 | 58.464 | 2021 | 58.898 | 2020 | 59.331 | 2019 | 59.762 | 2018 | 60.192 | 2017 | 60.62 | 2016 | 61.046 | 2015 | 61.471 | 2014 | 61.894 | 2013 | 62.315 | 2012 | 62.733 | 2011 | 63.151 | 2010 | 63.566 | 2009 | 63.979 | 2008 | 64.39 | 2007 | 64.8 | 2006 | 65.206 | 2005 | 66.25 | 2004 | 67.51 | 2003 | 68.748 | 2002 | 69.958 | 2001 | 71.141 | 2000 | 72.294 | 1999 | 72.866 | 1998 | 73.245 | 1997 | 73.621 | 1996 | 73.992 | 1995 | 74.362 | 1994 | 74.414 | 1993 | 74.351 | 1992 | 74.287 | 1991 | 74.224 | 1990 | 74.16 | 1989 | 74.194 | 1988 | 74.273 | 1987 | 74.352 | 1986 | 74.43 | 1985 | 74.509 | 1984 | 75.046 | 1983 | 75.743 | 1982 | 76.426 | 1981 | 77.095 | 1980 | 77.75 | 1979 | 78.393 | 1978 | 79.022 | 1977 | 80.042 | 1976 | 81.404 | 1975 | 82.696 | 1974 | 83.915 | 1973 | 85.064 | 1972 | 86.142 | 1971 | 87.158 | 1970 | 88.107 | 1969 | 88.302 | 1968 | 88.484 | 1967 | 88.664 | 1966 | 88.607 | 1965 | 88.542 | 1964 | 88.596 | 1963 | 88.655 | 1962 | 88.712 | 1961 | 88.77 | 1960 | 88.827 |
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