| Year | Value | | 2022 | 151.94333206325 | | 2021 | 127.25757287102 | | 2020 | 121.59935225757 | | 2019 | 122.14231282149 | | 2018 | 119.42274718994 | | 2017 | 115.45532482378 | | 2016 | 111.64031244046 | | 2015 | 111.47456658411 | | 2014 | 112.02610020956 | | 2013 | 112.14517050867 | | 2012 | 109.11125928748 | | 2011 | 104.98190131454 | | 2010 | 100 | | 2009 | 97.113735949705 | | 2008 | 97.189940941132 | | 2007 | 88.064393217756 | | 2006 | 82.610973518766 | | 2005 | 79.100781101162 | | 2004 | 76.000190512479 | | 2003 | 73.752143265384 | | 2002 | 72.78052962469 | | 2001 | 70.270527719566 | | 2000 | 66.45075252429 | | 1999 | 63.883596875595 | | 1998 | 61.845113354925 | | 1997 | 57.153743570204 | | 1996 | 51.684547343637 | | 1995 | 42.002765645952 | | 1994 | 32.616765134857 | | 1993 | 22.08989433263 | | 1992 | 11.637778572836 |
|