Year | Value | 2022 | 93.992 | 2021 | 93.944 | 2020 | 93.898 | 2019 | 93.855 | 2018 | 93.813 | 2017 | 93.773 | 2016 | 93.735 | 2015 | 93.7 | 2014 | 93.667 | 2013 | 93.633 | 2012 | 93.6 | 2011 | 93.587 | 2010 | 93.574 | 2009 | 93.511 | 2008 | 93.395 | 2007 | 93.278 | 2006 | 93.159 | 2005 | 93.037 | 2004 | 92.914 | 2003 | 92.789 | 2002 | 92.662 | 2001 | 92.532 | 2000 | 92.401 | 1999 | 92.267 | 1998 | 92.121 | 1997 | 91.96 | 1996 | 91.797 | 1995 | 91.63 | 1994 | 91.46 | 1993 | 91.287 | 1992 | 91.112 | 1991 | 90.932 | 1990 | 90.75 | 1989 | 90.524 | 1988 | 90.294 | 1987 | 90.057 | 1986 | 89.816 | 1985 | 89.57 | 1984 | 89.319 | 1983 | 89.062 | 1982 | 88.8 | 1981 | 88.533 | 1980 | 88.26 | 1979 | 87.955 | 1978 | 87.644 | 1977 | 87.326 | 1976 | 87.002 | 1975 | 86.669 | 1974 | 86.33 | 1973 | 85.983 | 1972 | 85.63 | 1971 | 85.269 | 1970 | 84.9 | 1969 | 84.483 | 1968 | 84.057 | 1967 | 83.621 | 1966 | 83.175 | 1965 | 82.72 | 1964 | 82.256 | 1963 | 81.781 | 1962 | 81.297 | 1961 | 80.803 | 1960 | 80.3 |
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