| Year | Value | | 2021 | 68,000 | | 2020 | 68,000 | | 2019 | 67,000 | | 2017 | 64,997 | | 2016 | 63,891 | | 2015 | 38,000 | | 2014 | 59,491 | | 2013 | 94,300 | | 2012 | 91,000 | | 2010 | 88,200 | | 2009 | 85,000 | | 2008 | 79,000 | | 2007 | 69,000 | | 2006 | 60,100 | | 2005 | 52,720 | | 2004 | 49,000 | | 2003 | 40,000 | | 2002 | 30,000 | | 2001 | 13,333 | | 2000 | 13,000 | | 1999 | 12,800 | | 1998 | 12,572 | | 1997 | 10,276 | | 1996 | 7,980 | | 1995 | 6,324 | | 1994 | 5,127 | | 1993 | 3,400 | | 1992 | 1,936 | | 1991 | 1,440 | | 1990 | 1,112 | | 1989 | 745 |
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