| Year | Value | | 2023 | 11,811,525 | | 2022 | 11,356,412 | | 2021 | 10,683,686 | | 2020 | 10,307,044 | | 2019 | 10,543,641 | | 2018 | 10,315,657 | | 2017 | 10,020,634 | | 2016 | 10,025,430 | | 2015 | 9,709,072 | | 2014 | 9,385,898 | | 2013 | 8,827,667 | | 2012 | 8,207,067 | | 2011 | 7,854,695 | | 2010 | 7,588,942 | | 2009 | 7,347,180 | | 2008 | 7,077,686 | | 2007 | 6,932,361 | | 2006 | 6,967,997 | | 2005 | 6,897,082 | | 2004 | 6,679,058 | | 2003 | 6,477,441 | | 2002 | 6,271,603 | | 2001 | 6,063,313 | | 2000 | 5,864,591 | | 1999 | 5,664,232 | | 1998 | 5,475,444 | | 1997 | 5,298,924 | | 1996 | 5,139,446 | | 1995 | 4,963,865 | | 1994 | 4,792,392 | | 1993 | 4,555,151 | | 1992 | 4,326,647 | | 1991 | 4,207,115 |
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