| Year | Value | | 2021 | 8,511,000 | | 2020 | 8,511,000 | | 2019 | 8,622,565 | | 2018 | 8,735,246 | | 2017 | 8,467,966 | | 2016 | 7,613,528 | | 2015 | 7,579,439 | | 2014 | 7,563,444 | | 2013 | 6,737,487 | | 2012 | 6,797,852 | | 2011 | 6,277,108 | | 2010 | 5,275,477 | | 2009 | 4,487,123 | | 2008 | 3,394,016 | | 2007 | 2,168,329 | | 2006 | 1,261,757 | | 2005 | 541,652 | | 2004 | 263,375 | | 2003 | 138,279 | | 2002 | 53,084 | | 2001 | 27,000 | | 2000 | 9,000 | | 1999 | 2,574 | | 1998 | 1,350 |
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