Year | Value | 2022 | 93.61 | 2021 | 93.592 | 2020 | 93.581 | 2019 | 93.576 | 2018 | 93.578 | 2017 | 93.587 | 2016 | 93.602 | 2015 | 93.624 | 2014 | 93.651 | 2013 | 93.686 | 2012 | 93.726 | 2011 | 93.773 | 2010 | 93.825 | 2009 | 93.884 | 2008 | 93.942 | 2007 | 93.999 | 2006 | 94.056 | 2005 | 94.112 | 2004 | 94.168 | 2003 | 94.224 | 2002 | 94.278 | 2001 | 94.333 | 2000 | 94.387 | 1999 | 94.298 | 1998 | 94.161 | 1997 | 94.02 | 1996 | 93.876 | 1995 | 93.729 | 1994 | 93.578 | 1993 | 93.424 | 1992 | 93.267 | 1991 | 93.106 | 1990 | 92.942 | 1989 | 91.915 | 1988 | 90.413 | 1987 | 88.66 | 1986 | 86.637 | 1985 | 84.317 | 1984 | 81.684 | 1983 | 78.711 | 1982 | 75.406 | 1981 | 71.772 | 1980 | 67.835 | 1979 | 66.178 | 1978 | 65.34 | 1977 | 64.492 | 1976 | 63.637 | 1975 | 62.77 | 1974 | 61.896 | 1973 | 61.014 | 1972 | 60.127 | 1971 | 59.23 | 1970 | 58.328 | 1969 | 57.077 | 1968 | 55.702 | 1967 | 54.314 | 1966 | 52.921 | 1965 | 51.524 | 1964 | 50.126 | 1963 | 48.724 | 1962 | 47.327 | 1961 | 45.933 | 1960 | 44.547 |
|