| Year | Value | | 2022 | 11,034,599 | | 2021 | 10,882,217 | | 2020 | 10,717,445 | | 2019 | 10,726,000 | | 2018 | 10,984,000 | | 2017 | 10,859,000 | | 2016 | 11,079,460 | | 2015 | 13,470,623 | | 2014 | 12,952,605 | | 2013 | 13,272,000 | | 2012 | 13,588,000 | | 2011 | 13,022,578 | | 2010 | 12,241,000 | | 2009 | 11,434,000 | | 2008 | 10,816,000 | | 2007 | 9,912,000 | | 2006 | 9,281,000 | | 2005 | 8,665,000 | | 2004 | 7,992,000 | | 2003 | 7,274,000 | | 2002 | 6,736,000 | | 2001 | 6,541,000 | | 2000 | 6,117,000 | | 1999 | 4,250,393 | | 1998 | 2,292,900 | | 1997 | 1,159,700 | | 1996 | 598,708 | | 1995 | 383,535 | | 1994 | 278,199 | | 1993 | 220,859 | | 1992 | 172,453 | | 1991 | 115,402 | | 1990 | 73,698 | | 1989 | 50,721 | | 1988 | 36,904 | | 1987 | 26,223 | | 1986 | 19,104 | | 1985 | 9,762 |
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