Year | Value | 2022 | 124.7076621462 | 2021 | 118.66987241334 | 2020 | 115.77736784013 | 2019 | 115.15863429017 | 2018 | 114.71925917922 | 2017 | 113.0508108275 | 2016 | 110.89465031376 | 2015 | 109.82747242569 | 2014 | 109.05716700499 | 2013 | 107.68443334697 | 2012 | 106.30108676356 | 2011 | 104.02596500436 | 2010 | 100 | 2009 | 97.144640665643 | 2008 | 94.538685077841 | 2007 | 90.31734576525 | 2006 | 88.084772188733 | 2005 | 86.15293032518 | 2004 | 83.844040167028 | 2003 | 80.937835271961 | 2002 | 78.189570002856 | 2001 | 76.087824851998 | 2000 | 73.114565564723 | 1999 | 71.499278321074 | 1998 | 70.92270702923 | 1997 | 65.966277911994 | 1996 | 63.162535987465 | 1995 | 60.198056483918 | 1994 | 57.616414143363 | 1993 | 54.219120246374 | 1992 | 51.735309781644 | 1991 | 48.708889386303 | 1990 | 44.551034663744 | 1989 | 41.033150919658 | 1988 | 38.820327997283 | 1987 | 36.231210298011 | 1986 | 35.158980657461 | 1985 | 34.217992381849 | 1984 | 33.396730447132 | 1983 | 32.654188439244 | 1982 | 31.574158298536 | 1981 | 29.456021002014 | 1980 | 24.273278004616 | 1979 | 18.860706319129 | 1978 | 15.939950138547 | 1977 | 13.926184209511 | 1976 | 12.649051783357 | 1975 | 10.96795774512 | 1974 | 8.7569044798123 | 1973 | 7.044737436226 | 1972 | 6.8249052555207 | 1971 | 6.110634054755 | 1970 | 5.3832635131485 | 1969 | 4.6427318827716 | 1968 | 4.1309278977146 | 1967 | 3.7292226900485 | 1966 | 3.3632220648508 | 1965 | 3.0228116147855 | 1964 | 2.6621397394237 | 1963 | 2.05629655215 | 1962 | 1.7037604489075 | 1961 | 1.5979998494894 | 1960 | 1.4769538395634 |
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