| Year | Value | | 2022 | 701,762 | | 2021 | 649,919 | | 2020 | 633,123 | | 2019 | 634,386 | | 2018 | 615,843 | | 2017 | 604,759 | | 2016 | 585,470 | | 2015 | 524,161 | | 2014 | 546,229 | | 2013 | 556,652 | | 2012 | 532,228 | | 2011 | 521,748 | | 2010 | 455,579 | | 2009 | 422,083 | | 2008 | 385,636 | | 2007 | 368,530 | | 2006 | 346,771 | | 2005 | 323,980 | | 2004 | 306,067 | | 2003 | 289,992 | | 2002 | 276,859 | | 2001 | 239,416 | | 2000 | 114,444 | | 1999 | 37,541 | | 1998 | 22,531 | | 1997 | 17,691 | | 1996 | 12,500 | | 1995 | 10,791 | | 1994 | 7,500 | | 1993 | 5,300 | | 1992 | 3,500 | | 1991 | 2,280 |
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