Year | Value | 2022 | 135.23035546508 | 2021 | 126.26287410458 | 2020 | 123.37192015469 | 2019 | 117.12966926925 | 2018 | 113.98092324739 | 2017 | 111.38458880832 | 2016 | 108.0517055922 | 2015 | 107.14943334032 | 2014 | 104.55309890124 | 2013 | 103.72448152707 | 2012 | 102.23297025356 | 2011 | 100.87379310478 | 2010 | 100 | 2009 | 97.311578191892 | 2008 | 93.302316331914 | 2007 | 88.993505986213 | 2006 | 85.623795331241 | 2005 | 83.911319424616 | 2004 | 82.916978575608 | 2003 | 81.756914251766 | 2002 | 79.363130726376 | 2001 | 77.834792014012 | 2000 | 75.146388977806 | 1999 | 73.286603315772 | 1998 | 71.850333200538 | 1997 | 69.567031991705 | 1996 | 67.652005171394 | 1995 | 67.044352430333 | 1994 | 65.582068200371 | 1993 | 64.105988836164 | 1992 | 61.898767356976 | 1991 | 59.484618864115 | 1990 | 55.870293691944 | 1989 | 53.331988990878 | 1988 | 49.496941670789 | 1987 | 45.510147874006 | 1986 | 39.219566658321 | 1985 | 37.435345198067 | 1984 | 37.040437514864 | 1983 | 35.103962490002 | 1982 | 34.533011622721 | 1981 | 32.372914174841 | 1980 | 25.521503767467 | 1979 | 22.942709016914 | 1978 | 22.02442970537 | 1977 | 20.696968938941 | 1976 | 19.574098899955 |
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