| Year | Value | | 2023 | 709,370 | | 2022 | 683,302 | | 2021 | 690,563 | | 2020 | 655,017 | | 2019 | 674,132 | | 2018 | 651,931 | | 2017 | 649,980 | | 2016 | 634,392 | | 2015 | 638,909 | | 2014 | 588,640 | | 2013 | 575,563 | | 2012 | 557,878 | | 2011 | 545,768 | | 2010 | 534,440 | | 2009 | 540,780 | | 2008 | 552,378 | | 2007 | 547,033 | | 2006 | 541,720 | | 2005 | 536,511 | | 2004 | 531,042 | | 2003 | 523,738 | | 2002 | 520,411 | | 2001 | 517,173 | | 2000 | 517,816 | | 1999 | 518,272 | | 1998 | 519,638 | | 1997 | 518,120 | | 1996 | 516,366 | | 1995 | 514,553 | | 1994 | 512,783 | | 1993 | 510,994 | | 1992 | 509,160 | | 1991 | 506,836 |
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