| Year | Value | | 2023 | 563,041 | | 2022 | 573,672 | | 2021 | 587,266 | | 2020 | 567,686 | | 2019 | 642,056 | | 2018 | 643,224 | | 2017 | 643,212 | | 2016 | 641,988 | | 2015 | 639,584 | | 2014 | 610,339 | | 2013 | 536,813 | | 2012 | 475,272 | | 2011 | 449,124 | | 2010 | 430,927 | | 2009 | 413,282 | | 2008 | 394,259 | | 2007 | 374,452 | | 2006 | 360,341 | | 2005 | 347,418 | | 2004 | 335,486 | | 2003 | 326,430 | | 2002 | 319,357 | | 2001 | 313,048 | | 2000 | 306,582 | | 1999 | 298,053 | | 1998 | 289,399 | | 1997 | 281,154 | | 1996 | 273,363 | | 1995 | 266,283 | | 1994 | 257,351 | | 1993 | 248,907 | | 1992 | 240,353 | | 1991 | 231,601 |
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