| Year | Value | | 2023 | 5,649,308 | | 2022 | 5,471,321 | | 2021 | 5,272,376 | | 2020 | 5,106,007 | | 2019 | 5,001,414 | | 2018 | 4,848,208 | | 2017 | 4,705,847 | | 2016 | 4,567,458 | | 2015 | 4,422,821 | | 2014 | 4,269,778 | | 2013 | 4,185,166 | | 2012 | 4,117,683 | | 2011 | 4,051,472 | | 2010 | 3,984,446 | | 2009 | 4,017,562 | | 2008 | 4,035,448 | | 2007 | 4,039,059 | | 2006 | 3,921,392 | | 2005 | 3,809,804 | | 2004 | 3,698,424 | | 2003 | 3,588,038 | | 2002 | 3,479,158 | | 2001 | 3,373,616 | | 2000 | 3,273,737 | | 1999 | 3,176,909 | | 1998 | 3,082,183 | | 1997 | 2,988,950 | | 1996 | 2,898,699 | | 1995 | 2,812,948 | | 1994 | 2,730,537 | | 1993 | 2,651,310 | | 1992 | 2,575,573 | | 1991 | 2,503,965 |
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