Year | Value | 2021 | 854 | 2020 | 3,289 | 2019 | 16,717 | 2018 | 18,444 | 2017 | 18,488 | 2016 | 17,825 | 2015 | 17,931 | 2014 | 16,557 | 2013 | 17,212 | 2012 | 18,141 | 2011 | 21,370 | 2010 | 21,840 | 2009 | 25,478 | 2008 | 24,477 | 2007 | 23,165 | 2006 | 19,505 | 2005 | 18,071 | 2004 | 17,310 | 2003 | 16,402 | 2002 | 14,881 | 2001 | 13,220 | 2000 | 12,082 | 1999 | 10,900 | 1998 | 9,900 | 1997 | 8,600 | 1996 | 8,000 | 1995 | 7,800 | 1994 | 6,900 | 1993 | 6,700 | 1992 | 3,900 |
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