Year | Value | 2022 | 87.555 | 2021 | 87.317 | 2020 | 87.073 | 2019 | 86.824 | 2018 | 86.569 | 2017 | 86.309 | 2016 | 86.042 | 2015 | 85.77 | 2014 | 85.492 | 2013 | 85.209 | 2012 | 84.923 | 2011 | 84.631 | 2010 | 84.335 | 2009 | 84.044 | 2008 | 83.749 | 2007 | 83.448 | 2006 | 83.143 | 2005 | 82.834 | 2004 | 82.521 | 2003 | 82.203 | 2002 | 81.88 | 2001 | 81.553 | 2000 | 81.192 | 1999 | 80.496 | 1998 | 79.781 | 1997 | 79.048 | 1996 | 78.302 | 1995 | 77.61 | 1994 | 76.903 | 1993 | 76.181 | 1992 | 75.444 | 1991 | 74.69 | 1990 | 73.922 | 1989 | 73.139 | 1988 | 72.342 | 1987 | 71.529 | 1986 | 70.703 | 1985 | 69.862 | 1984 | 69.01 | 1983 | 68.142 | 1982 | 67.262 | 1981 | 66.37 | 1980 | 65.468 | 1979 | 64.551 | 1978 | 63.625 | 1977 | 62.689 | 1976 | 61.745 | 1975 | 60.789 | 1974 | 59.826 | 1973 | 58.855 | 1972 | 57.879 | 1971 | 56.894 | 1970 | 55.909 | 1969 | 54.94 | 1968 | 53.97 | 1967 | 52.993 | 1966 | 52.016 | 1965 | 51.037 | 1964 | 50.059 | 1963 | 49.078 | 1962 | 48.099 | 1961 | 47.122 | 1960 | 46.139 |
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