| Year | Value | | 2023 | 7,140,090 | | 2022 | 6,976,582 | | 2021 | 6,754,925 | | 2020 | 6,567,626 | | 2019 | 6,463,221 | | 2018 | 6,297,157 | | 2017 | 6,132,821 | | 2016 | 5,968,425 | | 2015 | 5,810,628 | | 2014 | 5,711,486 | | 2013 | 5,615,063 | | 2012 | 5,520,447 | | 2011 | 5,427,244 | | 2010 | 5,335,233 | | 2009 | 5,237,888 | | 2008 | 5,132,543 | | 2007 | 5,022,619 | | 2006 | 4,910,639 | | 2005 | 4,798,581 | | 2004 | 4,684,658 | | 2003 | 4,568,155 | | 2002 | 4,448,726 | | 2001 | 4,327,410 | | 2000 | 4,212,373 | | 1999 | 4,102,797 | | 1998 | 3,991,445 | | 1997 | 3,879,694 | | 1996 | 3,775,063 | | 1995 | 3,676,427 | | 1994 | 3,581,127 | | 1993 | 3,492,122 | | 1992 | 3,408,250 | | 1991 | 3,331,738 |
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