| Year | Value | | 2021 | 991,500 | | 2020 | 991,500 | | 2019 | 1,030,000 | | 2018 | 1,015,000 | | 2017 | 1,033,915 | | 2016 | 1,044,685 | | 2015 | 965,950 | | 2014 | 876,176 | | 2013 | 930,406 | | 2012 | 858,809 | | 2011 | 727,000 | | 2010 | 697,920 | | 2009 | 640,000 | | 2008 | 600,000 | | 2007 | 530,048 | | 2006 | 284,661 | | 2005 | 205,000 | | 2004 | 142,190 | | 2003 | 109,882 | | 2002 | 89,900 | | 2001 | 80,933 | | 2000 | 55,057 | | 1999 | 23,380 | | 1998 | 8,000 | | 1997 | 5,200 | | 1996 | 3,700 | | 1995 | 2,200 | | 1994 | 1,100 |
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