Year | Value | 2022 | 150.43874035138 | 2021 | 135.56536855957 | 2020 | 128.32706577696 | 2019 | 128.77744906121 | 2018 | 127.27617144704 | 2017 | 121.17835897741 | 2016 | 112.70616568349 | 2015 | 109.87345747834 | 2014 | 111.04385787448 | 2013 | 108.32397677907 | 2012 | 107.4902508746 | 2011 | 106.27075302996 | 2010 | 100 | 2009 | 96.585777386358 | 2008 | 95.227021375129 | 2007 | 86.219663858259 | 2006 | 81.460536673511 | 2005 | 76.741606236233 | 2004 | 70.621743325388 | 2003 | 63.638439400167 | 2002 | 57.003963578185 | 2001 | 51.653179330423 | 2000 | 47.698812681567 | 1999 | 44.860221381709 | 1998 | 42.943089554823 | 1997 | 41.581525157748 | 1996 | 40.716410822952 | 1995 | 39.532307430116 | 1994 | 38.963438768039 | 1993 | 38.572715647608 | 1992 | 38.205596367964 | 1991 | 35.396206494573 | 1990 | 32.005120180595 | 1989 | 29.172509251884 | 1988 | 28.030640832151 | 1987 | 25.500013523554 | 1986 | 24.358573733108 | 1985 | 20.01955946398 | 1984 | 17.145171467461 | 1983 | 17.126939564054 | 1982 | 15.596380481077 | 1981 | 14.071346217314 | 1980 | 12.246682591501 | 1979 | 10.006000078857 | 1978 | 9.4879561972048 | 1977 | 8.6581283512303 | 1976 | 7.3662414583074 | 1975 | 6.8772949578497 |
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