| Year | Value | | 2023 | 5,382,321 | | 2022 | 5,374,303 | | 2021 | 5,259,744 | | 2020 | 5,167,188 | | 2019 | 5,194,405 | | 2018 | 5,144,068 | | 2017 | 5,086,330 | | 2016 | 4,997,187 | | 2015 | 4,989,597 | | 2014 | 4,978,926 | | 2013 | 4,962,050 | | 2012 | 4,910,968 | | 2011 | 4,876,780 | | 2010 | 4,893,955 | | 2009 | 4,797,213 | | 2008 | 4,777,353 | | 2007 | 4,728,844 | | 2006 | 4,646,803 | | 2005 | 4,626,679 | | 2004 | 4,485,839 | | 2003 | 4,402,418 | | 2002 | 4,365,043 | | 2001 | 4,315,763 | | 2000 | 4,416,525 | | 1999 | 4,371,569 | | 1998 | 4,269,462 | | 1997 | 4,229,113 | | 1996 | 4,205,314 | | 1995 | 4,202,026 | | 1994 | 4,171,786 | | 1993 | 4,106,266 | | 1992 | 4,081,207 | | 1991 | 4,035,746 |
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