| Year | Value | | 2021 | 3,626.457 | | 2020 | 3,626.856 | | 2019 | 3,629.154 | | 2018 | 3,626.611 | | 2017 | 3,626.441 | | 2016 | 3,626.297 | | 2015 | 3,626.369 | | 2014 | 3,627.102 | | 2013 | 3,631.306 | | 2012 | 3,631.386 | | 2011 | 3,624.077 | | 2010 | 3,622.418 | | 2009 | 3,622.686 | | 2008 | 3,622.039 | | 2007 | 3,629.15 | | 2006 | 3,626 | | 2005 | 3,626 | | 2004 | 3,660 | | 2003 | 3,657 | | 2002 | 3,657 | | 2001 | 3,662 | | 2000 | 3,662 | | 1999 | 3,662 | | 1998 | 3,667 | | 1997 | 3,665 | | 1996 | 3,673 | | 1995 | 3,668 |
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