Year | Value | 2021 | 1,859.1 | 2020 | 1,859.1 | 2019 | 1,859.6 | 2018 | 1,859.6 | 2017 | 1,859.6 | 2016 | 1,859.6 | 2015 | 1,859.6 | 2014 | 1,859 | 2013 | 1,859 | 2012 | 1,864 | 2011 | 1,865 | 2010 | 1,897 | 2009 | 1,883 | 2008 | 2,263 | 2007 | 2,265 | 2006 | 2,269 | 2005 | 2,270 | 2004 | 2,270 | 2003 | 2,270 | 2002 | 2,270 | 2001 | 2,305 | 2000 | 2,331 | 1999 | 2,413 | 1998 | 2,413 | 1997 | 2,413 | 1996 | 2,413 | 1995 | 2,413 |
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