Year | Value | 2022 | 123.3317900767 | 2021 | 115.13046266566 | 2020 | 112.65809699576 | 2019 | 112.33171208884 | 2018 | 111.19299141359 | 2017 | 110.0007798786 | 2016 | 109.17756461338 | 2015 | 108.78952922404 | 2014 | 109.01620535515 | 2013 | 107.89282930365 | 2012 | 106.32109921215 | 2011 | 103.41680754255 | 2010 | 100 | 2009 | 98.829722437379 | 2008 | 98.829723344004 | 2007 | 94.968354172738 | 2006 | 92.642412931704 | 2005 | 91.213405520246 | 2004 | 90.64787657878 | 2003 | 90.47857256794 | 2002 | 89.691582400883 | 2001 | 88.304130134449 | 2000 | 86.084492457598 | 1999 | 83.543029289655 | 1998 | 82.58322103426 | 1997 | 81.443441421316 | 1996 | 80.483626819548 | 1995 | 79.980394783941 | 1994 | 79.352526325255 | 1993 | 78.4980306932 | 1992 | 76.815274429235 | 1991 | 74.636396787509 | 1990 | 71.55233865756 | 1989 | 67.407095306877 | 1988 | 63.237878984781 | 1987 | 60.177304248884 | 1986 | 57.799974610881 | 1985 | 56.152690946549 | 1984 | 53.379304103498 | 1983 | 49.85567622066 | 1982 | 46.006627173005 | 1981 | 41.982623122496 | 1980 | 37.718285545778 | 1979 | 33.799376528671 | 1978 | 31.450946460926 | 1977 | 29.17545072713 | 1976 | 26.097662813892 | 1975 | 22.82407568837 | 1974 | 19.373402085226 | 1973 | 16.567469227207 | 1972 | 14.958736153506 | 1971 | 14.024363255232 | 1970 | 13.171413418362 | 1969 | 12.820089078057 | 1968 | 12.543429818333 | 1967 | 11.487533846342 | 1966 | 10.901286444297 | 1965 | 10.494755910237 | 1964 | 10.000664283948 | 1963 | 9.0687700977173 | 1962 | 8.6372215259042 | 1961 | 8.2744701780207 | 1960 | 8.1368754581741 |
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