| Year | Value | | 2023 | 3,522.5385379468 | | 2022 | 3,554.2281621305 | | 2021 | 3,587.4583667658 | | 2020 | 3,318.847059196 | | 2019 | 3,294.2219031759 | | 2018 | 3,347.7626869484 | | 2017 | 3,262.7841739298 | | 2016 | 3,073.6789121799 | | 2015 | 2,930.202721022 | | 2014 | 2,848.9716576496 | | 2013 | 2,747.5840874562 | | 2012 | 2,749.7136812343 | | 2011 | 2,666.7383778823 | | 2010 | 2,463.8597580191 | | 2009 | 2,291.627145363 | | 2008 | 2,401.1255582169 | | 2007 | 2,328.3551301951 | | 2006 | 2,138.9857019629 | | 2005 | 1,972.4632020943 | | 2004 | 1,848.2164049813 | | 2003 | 1,726.3159881076 | | 2002 | 1,620.0291146172 | | 2001 | 1,563.0130565979 | | 2000 | 1,597.530986209 | | 1999 | 1,500.8068423663 | | 1998 | 1,462.7426455199 | | 1997 | 1,383.1487284148 | | 1996 | 1,274.1493965228 | | 1995 | 1,176.2815995404 | | 1994 | 1,098.3805865745 | | 1993 | 1,070.8625767547 | | 1992 | 1,003.9986468039 | | 1991 | 928.57577493532 | | 1990 | 894.94667452447 |
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