| Year | Value | | 2021 | 184,000 | | 2020 | 184,000 | | 2019 | 184,000 | | 2017 | 184,000 | | 2016 | 180,000 | | 2015 | 176,000 | | 2014 | 120,041 | | 2013 | 114,358 | | 2012 | 127,381 | | 2011 | 176,008 | | 2010 | 167,970 | | 2009 | 134,925 | | 2008 | 136,592 | | 2007 | 112,381 | | 2006 | 110,177 | | 2005 | 86,000 | | 2004 | 54,000 | | 2003 | 46,100 | | 2002 | 38,205 | | 2001 | 25,000 | | 2000 | 22,000 | | 1999 | 8,500 | | 1998 | 1,500 | | 1997 | 1,400 | | 1996 | 1,300 |
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