| Year | Value | | 2021 | 5,971.2425322567 | | 2020 | 5,069.9991799253 | | 2019 | 5,081.7652157354 | | 2018 | 4,999.021510251 | | 2017 | 4,421.663463915 | | 2016 | 4,088.9242759506 | | 2015 | 3,873.5298564358 | | 2014 | 4,366.494798376 | | 2013 | 4,286.7936391401 | | 2012 | 3,971.4003409699 | | 2011 | 4,299.0831347721 | | 2010 | 3,980.1923113175 | | 2009 | 4,158.6959802184 | | 2008 | 4,464.7581612034 | | 2007 | 3,566.8664228186 | | 2006 | 2,941.3728612656 | | 2005 | 2,575.930303786 | | 2004 | 2,420.8870989912 | | 2003 | 1,929.176216149 | | 2002 | 1,561.346098655 | | 2001 | 1,377.3334541639 | | 2000 | 1,347.3451569585 | | 1999 | 1,220.9336145572 | | 1998 | 1,129.9656885874 | | 1997 | 797.17330885495 | | 1996 | 630.52714931513 | | 1995 | 397.11497441631 | | 1994 | 261.85436186208 |
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