| Year | Value | | 2021 | 100,000 | | 2020 | 100,000 | | 2019 | 99,000 | | 2017 | 96,656 | | 2016 | 95,656 | | 2015 | 93,244 | | 2014 | 91,059 | | 2013 | 98,036 | | 2012 | 98,834 | | 2011 | 96,777 | | 2010 | 100,568 | | 2009 | 108,699 | | 2008 | 98,313 | | 2007 | 101,497 | | 2006 | 92,559 | | 2005 | 80,945 | | 2004 | 33,800 | | 2003 | 21,040 | | 2002 | 19,000 | | 2001 | 17,000 | | 2000 | 10,700 | | 1999 | 8,410 | | 1998 | 5,170 | | 1997 | 4,109 | | 1995 | 2,534 | | 1994 | 1,813 | | 1993 | 1,260 | | 1992 | 988 | | 1991 | 559 |
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