Year | Value | 2022 | 23,200,000 | 2021 | 22,900,000 | 2020 | 22,600,000 | 2019 | 22,700,000 | 2018 | 22,600,000 | 2017 | 22,400,000 | 2016 | 22,900,000 | 2015 | 23,100,000 | 2014 | 22,900,000 | 2013 | 22,900,000 | 2012 | 22,800,000 | 2011 | 23,400,000 | 2010 | 24,400,000 | 2009 | 25,100,000 | 2008 | 24,500,000 | 2007 | 20,400,000 | 2006 | 16,000,000 | 2005 | 13,400,000 | 2004 | 10,200,000 | 2003 | 7,040,000 | 2002 | 5,110,000 | 2001 | 3,850,000 | 2000 | 2,500,000 | 1999 | 1,355,500 | 1998 | 643,000 | 1997 | 201,000 | 1996 | 17,000 | 1995 | 9,068 | 1994 | 2,775 | 1993 | 800 |
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