| Year | Value | | 2023 | 14,692,101 | | 2022 | 14,422,176 | | 2021 | 13,964,119 | | 2020 | 13,772,837 | | 2019 | 13,885,166 | | 2018 | 13,606,904 | | 2017 | 13,324,838 | | 2016 | 12,979,848 | | 2015 | 12,599,897 | | 2014 | 12,190,809 | | 2013 | 11,827,305 | | 2012 | 11,446,993 | | 2011 | 11,189,509 | | 2010 | 10,962,226 | | 2009 | 10,717,691 | | 2008 | 10,347,743 | | 2007 | 9,922,810 | | 2006 | 9,496,748 | | 2005 | 9,110,530 | | 2004 | 8,847,842 | | 2003 | 8,666,959 | | 2002 | 8,420,197 | | 2001 | 8,234,354 | | 2000 | 8,053,611 | | 1999 | 7,869,226 | | 1998 | 7,676,029 | | 1997 | 7,505,566 | | 1996 | 7,354,610 | | 1995 | 7,216,735 | | 1994 | 7,100,273 | | 1993 | 6,974,916 | | 1992 | 6,876,165 | | 1991 | 6,779,310 |
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