| Year | Value | | 2023 | 10,954,094 | | 2022 | 10,609,451 | | 2021 | 10,263,449 | | 2020 | 9,943,686 | | 2019 | 9,735,200 | | 2018 | 9,441,715 | | 2017 | 9,157,647 | | 2016 | 8,883,562 | | 2015 | 8,617,882 | | 2014 | 8,360,975 | | 2013 | 8,151,021 | | 2012 | 7,988,446 | | 2011 | 7,842,038 | | 2010 | 7,674,193 | | 2009 | 7,478,860 | | 2008 | 7,289,697 | | 2007 | 7,104,515 | | 2006 | 6,923,835 | | 2005 | 6,748,108 | | 2004 | 6,577,439 | | 2003 | 6,414,848 | | 2002 | 6,264,404 | | 2001 | 6,137,014 | | 2000 | 6,020,615 | | 1999 | 5,891,255 | | 1998 | 5,730,465 | | 1997 | 5,532,659 | | 1996 | 5,319,302 | | 1995 | 5,104,826 | | 1994 | 4,899,754 | | 1993 | 4,698,567 | | 1992 | 4,502,225 | | 1991 | 4,313,060 |
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