| Year | Value | | 2019 | 6,042,629 | | 2018 | 5,373,316 | | 2017 | 4,613,782 | | 2016 | 3,987,900 | | 2015 | 3,335,346 | | 2014 | 2,530,752 | | 2013 | 1,995,698 | | 2012 | 1,681,645 | | 2011 | 1,315,141 | | 2010 | 1,003,015 | | 2009 | 621,156 | | 2008 | 331,736 | | 2007 | 198,252 | | 2006 | 152,715 | | 2005 | 135,534 | | 2004 | 75,797 | | 2003 | 35,356 | | 2002 | 17,851 | | 2001 | 8,579 | | 2000 | 6,536 | | 1999 | 5,136 | | 1998 | 4,056 | | 1997 | 2,994 | | 1996 | 2,427 | | 1995 | 1,939 | | 1994 | 1,152 | | 1993 | 500 | | 1992 | 234 |
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