| Year | Value | | 2023 | 3,102,757 | | 2022 | 3,147,100 | | 2021 | 3,268,751 | | 2020 | 3,311,854 | | 2019 | 3,391,873 | | 2018 | 3,338,430 | | 2017 | 3,364,252 | | 2016 | 3,265,483 | | 2015 | 3,333,481 | | 2014 | 3,357,878 | | 2013 | 3,363,140 | | 2012 | 3,335,298 | | 2011 | 3,323,514 | | 2010 | 3,405,748 | | 2009 | 3,409,927 | | 2008 | 3,486,533 | | 2007 | 3,432,707 | | 2006 | 3,369,624 | | 2005 | 3,282,858 | | 2004 | 3,353,786 | | 2003 | 3,322,992 | | 2002 | 3,393,905 | | 2001 | 3,488,558 | | 2000 | 3,459,130 | | 1999 | 3,519,675 | | 1998 | 3,580,044 | | 1997 | 3,642,463 | | 1996 | 3,703,303 | | 1995 | 3,760,700 | | 1994 | 3,813,982 | | 1993 | 3,863,462 | | 1992 | 3,931,230 | | 1991 | 3,933,620 |
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