| Year | Value | | 2021 | 4,818,000 | | 2020 | 4,818,000 | | 2019 | 4,535,000 | | 2018 | 4,300,000 | | 2017 | 4,018,000 | | 2016 | 3,782,000 | | 2015 | 3,560,000 | | 2014 | 3,358,900 | | 2013 | 3,000,000 | | 2012 | 2,709,000 | | 2011 | 2,400,000 | | 2010 | 1,909,078 | | 2009 | 1,417,546 | | 2008 | 874,000 | | 2007 | 300,000 | | 2006 | 100,000 | | 2005 | 75,000 | | 2004 | 48,311 | | 2003 | 17,500 | | 2002 | 15,000 | | 2001 | 10,700 | | 2000 | 8,560 | | 1999 | 7,059 | | 1998 | 5,558 | | 1997 | 3,857 | | 1996 | 2,285 |
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