Year | Value | 2022 | 111.3558094625 | 2021 | 108.57648052784 | 2020 | 107.26833043128 | 2019 | 108.0688314934 | 2018 | 107.4262615626 | 2017 | 106.56933507403 | 2016 | 105.60991309945 | 2015 | 103.8952365626 | 2014 | 104.43353717412 | 2013 | 105.47095268748 | 2012 | 105.51738010943 | 2011 | 103.03347280335 | 2010 | 100 | 2009 | 96.677663340843 | 2008 | 96.976987447698 | 2007 | 89.765851303508 | 2006 | 86.430640489218 | 2005 | 82.905535886707 | 2004 | 80.120695204377 | 2003 | 78.309462504023 | 2002 | 76.657547473447 | 2001 | 75.848084969424 | 2000 | 73.538253535299 | 1999 | 71.96804171604 | 1998 | 71.554864153599 | 1997 | 70.58245440553 | 1996 | 69.714833896128 | 1995 | 68.32620509088 | 1994 | 67.072733249408 | 1993 | 64.635547999381 | 1992 | 62.869787666177 | 1991 | 60.580839086098 | 1990 | 59.019994149586 | 1989 | 57.454789311018 | 1988 | 54.411577675027 | 1987 | 52.318824687526 | 1986 | 52.779235581677 | 1985 | 52.486841933259 | 1984 | 51.205983189814 | 1983 | 48.463156204277 | 1982 | 45.678870417845 | 1981 | 42.36871247269 | 1980 | 35.667661022743 | 1979 | 29.278641600585 | 1978 | 24.220667891377 | 1977 | 20.502468063727 | 1976 | 17.307958352649 |
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