| Year | Value | | 2022 | 528,723 | | 2021 | 603,486 | | 2020 | 536,589 | | 2019 | 574,799 | | 2018 | 565,949 | | 2017 | 544,732 | | 2016 | 523,453 | | 2015 | 463,384 | | 2014 | 452,054 | | 2013 | 468,814 | | 2012 | 469,740 | | 2011 | 443,161 | | 2010 | 435,104 | | 2009 | 412,882 | | 2008 | 398,857 | | 2007 | 366,138 | | 2006 | 301,400 | | 2005 | 232,900 | | 2004 | 202,454 | | 2003 | 177,365 | | 2002 | 153,647 | | 2001 | 143,004 | | 2000 | 95,000 | | 1999 | 66,000 | | 1998 | 49,129 | | 1997 | 45,000 | | 1996 | 43,524 | | 1995 | 35,881 | | 1994 | 15,623 | | 1993 | 8,304 | | 1992 | 4,103 | | 1991 | 3,025 | | 1990 | 1,772 |
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