Year | Value | 2022 | 129.85832856325 | 2021 | 121.58700629651 | 2020 | 117.5944476245 | 2019 | 116.75729822553 | 2018 | 114.52489982828 | 2017 | 111.9848311391 | 2016 | 110.22467086434 | 2015 | 108.67200915856 | 2014 | 107.46279336005 | 2013 | 105.4522037779 | 2012 | 104.47195191757 | 2011 | 102.91213508872 | 2010 | 100 | 2009 | 98.25414997138 | 2008 | 97.960789925587 | 2007 | 95.692615912994 | 2006 | 93.689181453921 | 2005 | 91.850314825415 | 2004 | 89.861190612478 | 2003 | 88.22266742988 | 2002 | 85.854321694333 | 2001 | 83.958214081282 | 2000 | 81.890383514596 | 1999 | 79.722381224957 | 1998 | 78.362907842015 | 1997 | 77.590154550658 | 1996 | 76.352318259874 | 1995 | 75.171722953635 | 1994 | 73.590440755581 | 1993 | 73.468803663423 | 1992 | 72.123640526617 | 1991 | 71.064682312536 | 1990 | 67.279622209502 | 1989 | 64.21007441328 | 1988 | 61.161991986262 | 1987 | 58.793646250715 | 1986 | 56.339439038352 | 1985 | 54.071265025758 | 1984 | 52.010589582141 | 1983 | 49.864052661706 | 1982 | 47.102175157413 | 1981 | 42.522896393818 | 1980 | 37.807670291929 | 1979 | 34.330280480824 | 1978 | 31.453921007441 | 1977 | 28.863766456783 | 1976 | 26.731539782484 | 1975 | 24.856897538638 | 1974 | 22.459931310819 | 1973 | 20.234688036634 | 1972 | 18.825128792215 | 1971 | 17.930738408701 | 1970 | 17.458500286205 | 1969 | 16.893245563824 | 1968 | 16.156267887808 | 1967 | 15.526617057813 | 1966 | 14.989982827705 | 1965 | 14.43903835146 | 1964 | 14.109902690326 | 1963 | 13.845163136806 | 1962 | 13.623354321694 | 1961 | 13.480251860332 | 1960 | 13.344304522038 |
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