| Year | Value | | 2021 | 56,703 | | 2020 | 62,525 | | 2019 | 65,224 | | 2018 | 71,594 | | 2017 | 76,878 | | 2016 | 76,583 | | 2015 | 73,009 | | 2014 | 65,000 | | 2013 | 77,000 | | 2012 | 76,000 | | 2011 | 77,000 | | 2010 | 80,000 | | 2009 | 75,500 | | 2008 | 74,500 | | 2007 | 64,500 | | 2006 | 51,000 | | 2005 | 51,000 | | 2004 | 29,000 | | 2003 | 22,000 | | 2002 | 5,000 | | 2001 | 2,100 | | 2000 | 1,200 | | 1999 | 700 | | 1998 | 440 | | 1997 | 205 | | 1996 | 300 |
|