| Year | Value | | 2021 | 1,720 | | 2020 | 1,619 | | 2019 | 1,598.916 | | 2018 | 1,521 | | 2017 | 1,495 | | 2016 | 1,340.105 | | 2015 | 1,277 | | 2014 | 1,194 | | 2013 | 1,153 | | 2012 | 1,142.544 | | 2011 | 1,078.937 | | 2010 | 1,034 | | 2009 | 1,051.911 | | 2008 | 1,043.203 | | 2007 | 958 | | 2006 | 941 | | 2005 | 910 | | 2004 | 853 | | 2003 | 615 | | 2002 | 676 | | 2001 | 676 | | 2000 | 669 | | 1999 | 663 | | 1998 | 666 | | 1997 | 610 | | 1996 | 610 | | 1995 | 610 |
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