| Year | Value | | 2014 | 3,053.974641646 | | 2013 | 2,962.4482372135 | | 2012 | 2,871.7616075631 | | 2011 | 2,905.4740708322 | | 2010 | 2,817.5338231983 | | 2009 | 2,691.4950942184 | | 2008 | 2,652.5868057577 | | 2007 | 3,071.2860866904 | | 2006 | 3,235.1901515974 | | 2005 | 3,204.1853877047 | | 2004 | 3,048.6568096075 | | 2003 | 3,074.2920644004 | | 2002 | 2,848.0711734303 | | 2001 | 2,792.8505541894 | | 2000 | 2,751.2735661163 |
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