Year | Value | 2022 | 120.97017667743 | 2021 | 113.41977461379 | 2020 | 111.85166037391 | 2019 | 111.06755821997 | 2018 | 110.73161396511 | 2017 | 108.76950272846 | 2016 | 107.9548074706 | 2015 | 106.21781569441 | 2014 | 104.5884251787 | 2013 | 104.12785719776 | 2012 | 102.20572054415 | 2011 | 100.90692490969 | 2010 | 100 | 2009 | 99.016217047114 | 2008 | 98.063177311506 | 2007 | 94.55076473753 | 2006 | 92.658597303358 | 2005 | 89.711779168172 | 2004 | 88.838811991283 | 2003 | 87.531576878682 | 2002 | 86.521239232332 | 2001 | 84.16821602965 | 2000 | 83.649753290076 | 1999 | 82.094365071354 | 1998 | 81.536020582582 | 1997 | 79.351386987625 | 1996 | 78.536026781799 | 1995 | 76.258335772046 | 1994 | 71.858049443867 | 1993 | 68.344024208976 | 1992 | 64.976232054478 | 1991 | 61.448912903188 | 1990 | 56.904430608907 | 1989 | 53.289987131101 | 1988 | 51.60759526962 | 1987 | 50.413276982927 | 1986 | 49.088505851338 | 1985 | 45.145681074308 | 1984 | 41.906851822249 | 1983 | 37.267903674795 | 1982 | 35.089566084116 | 1981 | 31.747274230938 | 1980 | 28.221673638876 | 1979 | 25.794800886786 | 1978 | 23.811017969929 | 1977 | 21.702405175627 | 1976 | 19.274407830069 | 1975 | 17.764078772638 | 1974 | 16.460674917375 | 1973 | 14.002313547591 | 1972 | 13.452817860986 | 1971 | 12.965425406487 | 1970 | 12.448160511212 | 1969 | 12.290937138817 | 1968 | 11.938756784606 | 1967 | 11.886873071684 | 1966 | 11.976490393978 | 1965 | 12.099124624481 | 1964 | 11.691916089876 | 1963 | 11.239898894187 | 1962 | 10.633802793543 | 1961 | 10.118110131961 | 1960 | 9.9428060716901 |
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