| Year | Value | | 2024 | 6,397,139 | | 2023 | 6,204,134 | | 2022 | 6,035,371 | | 2021 | 5,870,968 | | 2020 | 5,605,830 | | 2019 | 5,459,336 | | 2018 | 5,267,149 | | 2017 | 5,081,385 | | 2016 | 4,901,776 | | 2015 | 4,727,555 | | 2014 | 4,557,889 | | 2013 | 4,393,926 | | 2012 | 4,235,463 | | 2011 | 4,080,183 | | 2010 | 3,950,108 | | 2009 | 3,820,397 | | 2008 | 3,695,226 | | 2007 | 3,577,425 | | 2006 | 3,468,401 | | 2005 | 3,353,095 | | 2004 | 3,235,131 | | 2003 | 3,128,205 | | 2002 | 3,024,243 | | 2001 | 2,925,855 | | 2000 | 2,830,348 | | 1999 | 2,737,746 | | 1998 | 2,648,475 | | 1997 | 2,563,287 | | 1996 | 2,486,709 | | 1995 | 2,427,651 | | 1994 | 2,394,402 | | 1993 | 2,300,455 | | 1992 | 2,182,477 | | 1991 | 2,116,070 | | 1990 | 2,052,281 |
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