| Year | Value | | 2023 | 631,718 | | 2022 | 626,629 | | 2021 | 592,142 | | 2020 | 610,951 | | 2019 | 628,123 | | 2018 | 577,248 | | 2017 | 591,133 | | 2016 | 571,730 | | 2015 | 574,500 | | 2014 | 570,652 | | 2013 | 555,909 | | 2012 | 552,207 | | 2011 | 547,987 | | 2010 | 532,306 | | 2009 | 521,204 | | 2008 | 516,835 | | 2007 | 524,571 | | 2006 | 516,440 | | 2005 | 506,979 | | 2004 | 496,529 | | 2003 | 485,621 | | 2002 | 475,861 | | 2001 | 465,604 | | 2000 | 455,064 | | 1999 | 444,438 | | 1998 | 435,246 | | 1997 | 426,789 | | 1996 | 418,856 | | 1995 | 410,301 | | 1994 | 403,047 | | 1993 | 394,271 | | 1992 | 383,615 | | 1991 | 370,991 |
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