| Year | Value | | 2022 | 11,508,619 | | 2021 | 11,071,073 | | 2020 | 9,949,000 | | 2019 | 10,396,786 | | 2018 | 9,433,495 | | 2017 | 9,478,044 | | 2016 | 9,637,259 | | 2015 | 9,334,132 | | 2014 | 9,193,342 | | 2013 | 8,991,899 | | 2012 | 8,649,000 | | 2011 | 8,316,150 | | 2010 | 7,700,336 | | 2009 | 7,566,245 | | 2008 | 6,950,703 | | 2007 | 6,137,381 | | 2006 | 3,851,611 | | 2005 | 2,411,753 | | 2004 | 1,832,579 | | 2003 | 1,149,790 | | 2002 | 888,818 | | 2001 | 857,782 | | 2000 | 743,628 | | 1999 | 511,365 | | 1998 | 137,114 | | 1997 | 40,163 | | 1996 | 23,270 | | 1995 | 13,475 | | 1994 | 4,868 | | 1993 | 1,632 |
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