| Year | Value | | 2023 | 1,640,007 | | 2022 | 1,544,835 | | 2021 | 1,489,778 | | 2020 | 1,428,527 | | 2019 | 1,464,568 | | 2018 | 1,423,394 | | 2017 | 1,381,577 | | 2016 | 1,735,225 | | 2015 | 1,632,238 | | 2014 | 1,533,127 | | 2013 | 1,375,293 | | 2012 | 1,218,391 | | 2011 | 1,171,206 | | 2010 | 1,136,397 | | 2009 | 1,104,665 | | 2008 | 1,067,770 | | 2007 | 1,047,744 | | 2006 | 1,016,210 | | 2005 | 970,782 | | 2004 | 907,728 | | 2003 | 850,267 | | 2002 | 795,871 | | 2001 | 744,354 | | 2000 | 696,543 | | 1999 | 650,889 | | 1998 | 608,872 | | 1997 | 570,302 | | 1996 | 550,879 | | 1995 | 530,897 | | 1994 | 511,187 | | 1993 | 484,884 | | 1992 | 459,634 | | 1991 | 443,737 |
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