Year | Value | 2022 | 131.91935666853 | 2021 | 129.36621663746 | 2020 | 128.10944360562 | 2019 | 125.08315438207 | 2018 | 121.55887786611 | 2017 | 119.08805042868 | 2016 | 117.22056736967 | 2015 | 114.9221228195 | 2014 | 113.29406019984 | 2013 | 111.15800176519 | 2012 | 108.31890898237 | 2011 | 105.55389892258 | 2010 | 100 | 2009 | 96.922399071383 | 2008 | 97.633331061502 | 2007 | 92.171913494061 | 2006 | 87.936229612536 | 2005 | 86.509318106506 | 2004 | 84.999377204754 | 2003 | 81.868214816715 | 2002 | 80.955359361403 | 2001 | 81.552298456301 | 2000 | 80.970022290301 | 1999 | 80.689375583136 | 1998 | 81.836288815473 | 1997 | 82.473965983629 | 1996 | 80.238157756706 | 1995 | 74.079786373753 | 1994 | 63.429239884278 | 1993 | 51.046818392265 | 1992 | 44.539554461472 | 1991 | 41.878596268982 | 1990 | 40.440263229003 | 1989 | 39.242469217925 | 1988 | 33.187244588026 | 1987 | 27.93261239671 | 1986 | 26.048319784966 |
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