| Year | Value | | 2021 | 1,497.601 | | 2020 | 1,578 | | 2019 | 6,466 | | 2018 | 8,751 | | 2017 | 27,055 | | 2016 | 23,120 | | 2015 | 20,962 | | 2014 | 17,388 | | 2013 | 12,189 | | 2012 | 7,719 | | 2011 | 9,274 | | 2010 | 7,371 | | 2009 | 5,459 | | 2008 | 3,567 | | 2007 | 4,916 | | 2006 | 4,730 | | 2005 | 5,228 | | 2004 | 5,550 | | 2003 | 4,810 | | 2002 | 3,951 | | 2001 | 4,942 | | 2000 | 6,051 | | 1999 | 8,300 | | 1998 | 15,300 | | 1997 | 10,400 | | 1996 | 13,300 | | 1995 | 11,600 | | 1994 | 10,400 | | 1993 | 10,400 |
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