| Year | Value | | 2022 | 5,690,017 | | 2021 | 5,373,865 | | 2020 | 5,234,009 | | 2019 | 5,160,309 | | 2018 | 4,971,493 | | 2017 | 4,898,872 | | 2016 | 4,875,116 | | 2015 | 4,902,009 | | 2014 | 4,912,620 | | 2013 | 4,880,792 | | 2012 | 5,013,676 | | 2011 | 4,906,352 | | 2010 | 4,701,474 | | 2009 | 4,704,497 | | 2008 | 5,048,127 | | 2007 | 4,970,719 | | 2006 | 4,690,135 | | 2005 | 4,270,000 | | 2004 | 3,860,000 | | 2003 | 3,500,000 | | 2002 | 3,000,000 | | 2001 | 2,970,000 | | 2000 | 2,461,000 | | 1999 | 1,677,000 | | 1998 | 946,000 | | 1997 | 545,000 | | 1996 | 288,600 | | 1995 | 158,000 | | 1994 | 88,000 | | 1993 | 61,100 | | 1992 | 44,000 | | 1991 | 32,000 | | 1990 | 25,000 | | 1989 | 13,579 | | 1988 | 6,300 | | 1987 | 3,475 | | 1986 | 1,500 | | 1985 | 300 |
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