| Year | Value | | 2022 | 47,952,100 | | 2021 | 47,201,700 | | 2020 | 43,723,600 | | 2019 | 44,600,700 | | 2018 | 42,413,400 | | 2017 | 42,338,500 | | 2016 | 43,464,500 | | 2015 | 44,104,000 | | 2014 | 44,928,600 | | 2013 | 43,005,000 | | 2012 | 41,324,700 | | 2011 | 36,661,300 | | 2010 | 33,858,700 | | 2009 | 30,144,000 | | 2008 | 27,713,000 | | 2007 | 23,347,000 | | 2006 | 19,463,722 | | 2005 | 19,545,000 | | 2004 | 14,611,000 | | 2003 | 11,124,000 | | 2002 | 9,053,000 | | 2001 | 7,385,000 | | 2000 | 5,121,748 | | 1999 | 2,990,000 | | 1998 | 2,200,000 | | 1997 | 2,000,000 | | 1996 | 1,520,320 | | 1995 | 1,005,066 | | 1994 | 571,720 | | 1993 | 340,022 | | 1992 | 200,573 | | 1991 | 130,000 | | 1990 | 86,620 | | 1989 | 39,419 | | 1988 | 27,302 | | 1987 | 17,411 | | 1986 | 10,817 |
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