Year | Value | 2021 | 2,339 | 2020 | 2,345 | 2019 | 2,280 | 2018 | 2,293 | 2017 | 2,240 | 2016 | 2,240 | 2015 | 2,240 | 2014 | 2,238 | 2013 | 2,265 | 2012 | 2,208 | 2011 | 2,554 | 2010 | 2,552 | 2009 | 2,552 | 2008 | 2,552 | 2007 | 2,551 | 2006 | 2,509 | 2005 | 2,576 | 2004 | 2,449 | 2003 | 2,414 | 2002 | 2,383 | 2001 | 2,377 | 2000 | 2,385 | 1999 | 2,299 | 1998 | 2,299 | 1997 | 2,503 | 1996 | 2,474 | 1995 | 2,474 |
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