| Year | Value | | 2023 | 9,847,754 | | 2022 | 9,629,968 | | 2021 | 9,147,766 | | 2020 | 8,852,361 | | 2019 | 9,214,285 | | 2018 | 9,059,235 | | 2017 | 8,872,208 | | 2016 | 8,661,001 | | 2015 | 8,566,113 | | 2014 | 8,468,946 | | 2013 | 8,324,494 | | 2012 | 8,209,415 | | 2011 | 8,131,735 | | 2010 | 7,836,109 | | 2009 | 7,672,069 | | 2008 | 7,574,753 | | 2007 | 7,297,902 | | 2006 | 7,114,930 | | 2005 | 6,849,194 | | 2004 | 6,686,711 | | 2003 | 6,524,560 | | 2002 | 6,348,066 | | 2001 | 6,292,422 | | 2000 | 6,281,817 | | 1999 | 6,252,432 | | 1998 | 6,153,951 | | 1997 | 6,031,946 | | 1996 | 5,926,506 | | 1995 | 5,761,481 | | 1994 | 5,576,581 | | 1993 | 5,436,013 | | 1992 | 5,281,186 | | 1991 | 5,083,624 |
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