| Year | Value | | 2023 | 9,174,840 | | 2022 | 9,057,330 | | 2021 | 8,922,729 | | 2020 | 8,690,980 | | 2019 | 8,636,531 | | 2018 | 8,386,085 | | 2017 | 8,131,979 | | 2016 | 7,874,603 | | 2015 | 7,620,595 | | 2014 | 7,368,200 | | 2013 | 7,112,623 | | 2012 | 6,865,596 | | 2011 | 6,831,932 | | 2010 | 6,778,050 | | 2009 | 6,707,925 | | 2008 | 6,619,705 | | 2007 | 6,511,792 | | 2006 | 6,392,064 | | 2005 | 6,267,722 | | 2004 | 6,139,652 | | 2003 | 6,005,653 | | 2002 | 5,866,857 | | 2001 | 5,726,428 | | 2000 | 5,586,065 | | 1999 | 5,445,907 | | 1998 | 5,228,103 | | 1997 | 5,017,701 | | 1996 | 4,895,904 | | 1995 | 4,754,699 | | 1994 | 4,648,062 | | 1993 | 4,360,239 | | 1992 | 4,144,694 | | 1991 | 3,984,220 |
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