| Year | Value | | 2022 | 23,106,995 | | 2021 | 21,750,113 | | 2020 | 22,350,310 | | 2019 | 21,400,736 | | 2018 | 18,455,836 | | 2017 | 20,135,388 | | 2016 | 18,717,503 | | 2015 | 18,160,667 | | 2014 | 17,039,059 | | 2013 | 15,664,666 | | 2012 | 13,108,058 | | 2011 | 10,486,614 | | 2010 | 8,636,652 | | 2009 | 8,004,120 | | 2008 | 6,160,893 | | 2007 | 4,536,000 | | 2006 | 3,135,946 | | 2005 | 2,252,508 | | 2004 | 1,530,868 | | 2003 | 1,077,000 | | 2002 | 701,507 | | 2001 | 417,295 | | 2000 | 103,279 | | 1999 | 6,000 | | 1998 | 5,000 | | 1997 | 4,200 | | 1996 | 3,500 | | 1995 | 2,800 | | 1994 | 1,600 |
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