| Year | Value | | 2019 | 857 | | 2018 | 62,802 | | 2017 | 13,103 | | 2016 | 372,274 | | 2015 | 512,389 | | 2014 | 602,880 | | 2013 | 627,588 | | 2012 | 914,519 | | 2011 | 614,933 | | 2010 | 582,320.20275315 | | 2009 | 395,532 | | 2008 | 685,582 | | 2007 | 651,323 | | 2006 | 598,123 | | 2005 | 577,808 | | 2004 | 509,556 | | 2003 | 395,485 | | 2002 | 304,135 | | 2001 | 277,768 | | 2000 | 277,595 | | 1999 | 302,000 | | 1998 | 297,400 | | 1997 | 230,500 | | 1996 | 149,400 | | 1995 | 168,600 | | 1994 | 157,300 | | 1993 | 127,700 | | 1992 | 146,300 |
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