| Year | Value | | 2021 | 3,094.6238752983 | | 2020 | 4,271.871633507 | | 2019 | 6,987.128178223 | | 2018 | 7,375.3279179999 | | 2017 | 7,162.2831968649 | | 2016 | 6,657.0331335218 | | 2015 | 6,331.9956544154 | | 2014 | 6,184.7901819308 | | 2013 | 6,702.2352546169 | | 2012 | 6,885.844563725 | | 2011 | 6,431.3487022562 | | 2010 | 6,366.3174279584 | | 2009 | 6,050.3712710658 | | 2008 | 5,135.5619354447 | | 2007 | 4,497.9527993367 | | 2006 | 3,921.7195243151 | | 2005 | 3,930.842382599 | | 2004 | 3,817.1394634849 | | 2003 | 3,138.1261156959 | | 2002 | 3,573.8673024769 | | 2001 | 3,453.7791862346 | | 2000 | 3,531.9242387931 | | 1999 | 3,583.1749256303 | | 1998 | 3,518.5833598298 | | 1997 | 3,201.3345330192 | | 1996 | 2,996.1200043873 | | 1995 | 2,659.027328051 | | 1994 | 2,190.6264319843 | | 1993 | 1,803.7641899116 | | 1992 | 1,391.6514802394 | | 1991 | 1,164.361431925 | | 1990 | 834.63456570535 | | 1989 | 782.12799294882 |
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