| Year | Value | | 2023 | 5,770,337 | | 2022 | 5,634,858 | | 2021 | 5,443,504 | | 2020 | 5,300,563 | | 2019 | 5,321,250 | | 2018 | 5,176,545 | | 2017 | 5,046,602 | | 2016 | 4,910,835 | | 2015 | 4,803,944 | | 2014 | 4,670,100 | | 2013 | 4,557,760 | | 2012 | 4,411,744 | | 2011 | 4,306,385 | | 2010 | 4,215,921 | | 2009 | 4,122,324 | | 2008 | 4,008,593 | | 2007 | 3,893,569 | | 2006 | 3,790,477 | | 2005 | 3,680,712 | | 2004 | 3,580,277 | | 2003 | 3,507,628 | | 2002 | 3,400,827 | | 2001 | 3,315,476 | | 2000 | 3,245,358 | | 1999 | 3,161,521 | | 1998 | 3,069,602 | | 1997 | 2,998,567 | | 1996 | 2,927,658 | | 1995 | 2,863,923 | | 1994 | 2,809,400 | | 1993 | 2,751,188 | | 1992 | 2,703,455 | | 1991 | 2,663,772 |
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