| Year | Value | | 2023 | 10,812,084 | | 2022 | 10,634,108 | | 2021 | 10,675,191 | | 2020 | 10,388,752 | | 2019 | 10,437,829 | | 2018 | 10,351,654 | | 2017 | 10,296,915 | | 2016 | 10,145,288 | | 2015 | 10,070,285 | | 2014 | 9,861,631 | | 2013 | 9,750,867 | | 2012 | 9,704,722 | | 2011 | 9,347,480 | | 2010 | 9,082,134 | | 2009 | 8,823,628 | | 2008 | 8,079,541 | | 2007 | 7,853,971 | | 2006 | 7,778,145 | | 2005 | 7,700,826 | | 2004 | 7,801,463 | | 2003 | 7,739,884 | | 2002 | 7,375,921 | | 2001 | 7,352,737 | | 2000 | 7,171,545 | | 1999 | 6,966,710 | | 1998 | 6,928,317 | | 1997 | 6,776,938 | | 1996 | 6,567,504 | | 1995 | 6,394,250 | | 1994 | 6,159,855 | | 1993 | 5,921,359 | | 1992 | 5,700,821 | | 1991 | 5,513,918 |
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