| Year | Value | | 2022 | 11,326,179 | | 2021 | 11,494,008 | | 2020 | 11,412,995 | | 2019 | 11,882,081 | | 2018 | 12,170,757 | | 2017 | 12,937,106 | | 2016 | 12,538,927 | | 2015 | 12,566,649 | | 2014 | 12,144,598 | | 2013 | 12,518,645 | | 2012 | 13,360,280 | | 2011 | 12,127,985 | | 2010 | 12,292,716 | | 2009 | 13,295,093 | | 2008 | 13,799,340 | | 2007 | 12,294,912 | | 2006 | 10,979,826 | | 2005 | 10,260,396 | | 2004 | 9,324,335 | | 2003 | 8,936,202 | | 2002 | 9,314,260 | | 2001 | 7,963,742 | | 2000 | 5,932,403 | | 1999 | 3,904,000 | | 1998 | 2,047,000 | | 1997 | 937,700 | | 1996 | 532,000 | | 1995 | 273,000 | | 1994 | 153,000 | | 1993 | 48,000 |
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