| Year | Value | | 2023 | 12,697,126 | | 2022 | 12,303,329 | | 2021 | 11,979,093 | | 2020 | 11,477,513 | | 2019 | 11,249,011 | | 2018 | 10,899,101 | | 2017 | 10,556,713 | | 2016 | 10,215,495 | | 2015 | 9,903,073 | | 2014 | 9,605,120 | | 2013 | 9,312,515 | | 2012 | 9,026,232 | | 2011 | 8,746,436 | | 2010 | 8,472,673 | | 2009 | 8,204,691 | | 2008 | 7,939,504 | | 2007 | 7,684,261 | | 2006 | 7,435,514 | | 2005 | 7,187,606 | | 2004 | 6,941,302 | | 2003 | 6,696,218 | | 2002 | 6,458,584 | | 2001 | 6,221,062 | | 2000 | 5,989,987 | | 1999 | 5,773,993 | | 1998 | 5,574,443 | | 1997 | 5,390,389 | | 1996 | 5,210,750 | | 1995 | 5,034,189 | | 1994 | 4,855,047 | | 1993 | 4,678,172 | | 1992 | 4,507,223 | | 1991 | 4,341,628 |
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