Year | Value | 2022 | 89.262 | 2021 | 89.093 | 2020 | 88.925 | 2019 | 88.758 | 2018 | 88.593 | 2017 | 88.429 | 2016 | 88.266 | 2015 | 88.106 | 2014 | 87.947 | 2013 | 87.79 | 2012 | 87.636 | 2011 | 87.484 | 2010 | 87.334 | 2009 | 87.187 | 2008 | 87.042 | 2007 | 86.901 | 2006 | 86.762 | 2005 | 86.627 | 2004 | 86.494 | 2003 | 86.366 | 2002 | 86.24 | 2001 | 86.118 | 2000 | 86 | 1999 | 85.885 | 1998 | 85.77 | 1997 | 85.459 | 1996 | 85.142 | 1995 | 84.82 | 1994 | 84.491 | 1993 | 84.157 | 1992 | 83.818 | 1991 | 83.472 | 1990 | 83.12 | 1989 | 82.763 | 1988 | 82.4 | 1987 | 81.446 | 1986 | 80.454 | 1985 | 79.422 | 1984 | 78.353 | 1983 | 77.24 | 1982 | 76.089 | 1981 | 74.899 | 1980 | 73.672 | 1979 | 72.403 | 1978 | 71.099 | 1977 | 69.759 | 1976 | 68.387 | 1975 | 66.978 | 1974 | 65.54 | 1973 | 64.072 | 1972 | 62.58 | 1971 | 61.06 | 1970 | 59.475 | 1969 | 57.796 | 1968 | 56.101 | 1967 | 54.386 | 1966 | 52.664 | 1965 | 50.935 | 1964 | 49.207 | 1963 | 47.475 | 1962 | 45.752 | 1961 | 44.039 | 1960 | 42.343 |
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