Year | Value | 2022 | 57.375 | 2021 | 58.015 | 2020 | 58.653 | 2019 | 59.288 | 2018 | 59.92 | 2017 | 60.549 | 2016 | 61.173 | 2015 | 61.794 | 2014 | 62.41 | 2013 | 63.021 | 2012 | 63.628 | 2011 | 64.229 | 2010 | 64.825 | 2009 | 65.415 | 2008 | 66 | 2007 | 66.983 | 2006 | 67.949 | 2005 | 68.901 | 2004 | 69.836 | 2003 | 70.756 | 2002 | 71.659 | 2001 | 72.545 | 2000 | 73.413 | 1999 | 74.265 | 1998 | 75.097 | 1997 | 75.912 | 1996 | 76.707 | 1995 | 77.486 | 1994 | 78.245 | 1993 | 78.985 | 1992 | 79.706 | 1991 | 80.41 | 1990 | 81.095 | 1989 | 81.761 | 1988 | 82.408 | 1987 | 83.038 | 1986 | 83.649 | 1985 | 84.243 | 1984 | 84.818 | 1983 | 85.06 | 1982 | 85.245 | 1981 | 85.428 | 1980 | 85.61 | 1979 | 85.789 | 1978 | 85.967 | 1977 | 86.143 | 1976 | 86.316 | 1975 | 86.489 | 1974 | 86.659 | 1973 | 86.827 | 1972 | 86.994 | 1971 | 87.159 | 1970 | 87.322 | 1969 | 87.483 | 1968 | 87.642 | 1967 | 87.8 | 1966 | 88.172 | 1965 | 88.534 | 1964 | 88.885 | 1963 | 89.228 | 1962 | 89.562 | 1961 | 89.886 | 1960 | 90.201 |
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