Year | Value | 2021 | 271 | 2020 | 271 | 2019 | 288 | 2018 | 288 | 2017 | 275 | 2016 | 275 | 2015 | 275 | 2014 | 275 | 2013 | 275 | 2012 | 275 | 2011 | 275 | 2010 | 275 | 2009 | 275 | 2008 | 275 | 2007 | 275 | 2006 | 275 | 2005 | 275 | 2004 | 275 | 2003 | 275 | 2002 | 274 | 2001 | 274 | 2000 | 274 | 1999 | 274 | 1998 | 274 | 1997 | 274 | 1996 | 274 | 1995 | 275 |
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