| Year | Value | | 2022 | 7,443,962 | | 2021 | 7,363,597 | | 2020 | 7,252,675 | | 2019 | 7,243,465 | | 2018 | 7,216,215 | | 2017 | 7,140,859 | | 2016 | 6,985,035 | | 2015 | 7,079,249 | | 2014 | 7,160,233 | | 2013 | 7,031,152 | | 2012 | 7,292,756 | | 2011 | 7,173,185 | | 2010 | 6,420,790 | | 2009 | 6,833,683 | | 2008 | 6,556,988 | | 2007 | 6,308,000 | | 2006 | 5,828,157 | | 2005 | 5,449,206 | | 2004 | 5,166,912 | | 2003 | 4,767,100 | | 2002 | 4,477,752 | | 2001 | 3,960,165 | | 2000 | 3,363,552 | | 1999 | 2,628,585 | | 1998 | 1,931,101 | | 1997 | 1,444,016 | | 1996 | 1,316,592 | | 1995 | 822,264 | | 1994 | 503,500 | | 1993 | 357,589 | | 1992 | 211,063 | | 1991 | 175,943 | | 1990 | 148,220 | | 1989 | 123,792 | | 1988 | 101,479 | | 1987 | 77,432 | | 1986 | 57,604 | | 1985 | 46,100 | | 1984 | 30,600 | | 1983 | 16,100 | | 1982 | 7,200 |
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