| Year | Value | | 2023 | 940,741 | | 2022 | 1,042,256 | | 2021 | 1,030,758 | | 2020 | 986,617 | | 2019 | 1,056,673 | | 2018 | 962,030 | | 2017 | 895,041 | | 2016 | 884,380 | | 2015 | 947,720 | | 2014 | 956,719 | | 2013 | 939,495 | | 2012 | 926,695 | | 2011 | 822,000 | | 2010 | 765,286 | | 2009 | 762,547 | | 2008 | 740,577 | | 2007 | 722,611 | | 2006 | 690,904 | | 2005 | 680,831 | | 2004 | 605,758 | | 2003 | 615,113 | | 2002 | 594,894 | | 2001 | 585,101 | | 2000 | 528,500 | | 1999 | 530,500 | | 1998 | 508,375 | | 1997 | 463,888 | | 1996 | 412,698 | | 1995 | 418,068 | | 1994 | 395,137 | | 1993 | 370,673 | | 1992 | 349,932 | | 1991 | 347,511 |
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