| Year | Value | | 2025 | 6,854,692 | | 2024 | 6,660,943 | | 2023 | 6,499,497 | | 2022 | 6,118,687 | | 2021 | 6,005,153 | | 2020 | 5,805,013 | | 2019 | 5,773,237 | | 2018 | 5,654,759 | | 2017 | 5,543,892 | | 2016 | 5,441,038 | | 2015 | 5,349,250 | | 2014 | 5,270,044 | | 2013 | 5,200,964 | | 2012 | 5,143,461 | | 2011 | 5,081,883 | | 2010 | 5,015,581 | | 2009 | 4,959,627 | | 2008 | 4,911,151 | | 2007 | 4,867,035 | | 2006 | 4,810,305 | | 2005 | 4,760,160 | | 2004 | 4,728,584 | | 2003 | 4,688,939 | | 2002 | 4,639,582 | | 2001 | 4,587,960 | | 2000 | 4,537,120 | | 1999 | 4,465,846 | | 1998 | 4,350,611 | | 1997 | 4,213,710 | | 1996 | 4,078,583 | | 1995 | 3,957,290 | | 1994 | 3,880,873 | | 1993 | 3,850,702 | | 1992 | 3,810,735 | | 1991 | 3,714,749 | | 1990 | 3,590,008 |
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