| Year | Value | | 2021 | 264,000 | | 2020 | 264,000 | | 2019 | 254,919 | | 2018 | 246,311 | | 2017 | 239,441 | | 2016 | 222,928 | | 2015 | 211,946 | | 2014 | 172,300 | | 2013 | 174,615 | | 2012 | 172,423 | | 2011 | 222,407 | | 2010 | 194,201 | | 2009 | 161,783 | | 2008 | 160,032 | | 2007 | 118,314 | | 2006 | 118,000 | | 2005 | 96,000 | | 2004 | 75,000 | | 2003 | 60,403 | | 2002 | 51,729 | | 2001 | 39,155 | | 2000 | 16,812 | | 1999 | 6,591 | | 1998 | 3,535 | | 1997 | 2,544 | | 1996 | 2,184 | | 1995 | 1,547 | | 1994 | 832 | | 1993 | 400 |
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