| Year | Value | | 2021 | 9,027.879964 | | 2020 | 8,084.89962 | | 2019 | 11,739.489567 | | 2018 | 12,676.721747 | | 2017 | 12,415.19932 | | 2016 | 11,409.118758 | | 2015 | 11,294.272491 | | 2014 | 10,826.12281 | | 2013 | 9,396.48053 | | 2012 | 9,468.4180095836 | | 2011 | 10,053.898445 | | 2010 | 10,373.434773 | | 2009 | 13,293.176 | | 2008 | 8,985.895 | | 2007 | 10,028.957 | | 2006 | 8,325.969 | | 2005 | 7,763.873 | | 2004 | 6,931.629 | | 2003 | 5,780.75 | | 2002 | 5,714.644 | | 2001 | 5,066.022 | | 2000 | 5,111.511 | | 1999 | 4,545.7001953125 | | 1998 | 4,151.1000976563 | | 1997 | 2,325.3000488281 |
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