| Year | Value | | 2022 | 44,729,098 | | 2021 | 48,602,929 | | 2020 | 46,548,245 | | 2019 | 46,280,368 | | 2018 | 44,908,924 | | 2017 | 46,137,192 | | 2016 | 46,191,214 | | 2015 | 44,380,772 | | 2014 | 42,526,765 | | 2013 | 39,718,348 | | 2012 | 36,698,837 | | 2011 | 34,237,043 | | 2010 | 31,664,078 | | 2009 | 28,292,305 | | 2008 | 24,962,865 | | 2007 | 21,297,456 | | 2006 | 17,043,422 | | 2005 | 13,558,052 | | 2004 | 11,028,044 | | 2003 | 8,230,081 | | 2002 | 6,414,802 | | 2001 | 4,530,784 | | 2000 | 3,044,952 | | 1999 | 1,625,617 | | 1998 | 989,310 | | 1997 | 662,205 | | 1996 | 445,094 | | 1995 | 291,508 | | 1994 | 160,027 | | 1993 | 100,051 | | 1992 | 66,696 | | 1991 | 43,332 | | 1990 | 28,168 | | 1989 | 13,492 | | 1988 | 9,573 | | 1987 | 6,720 | | 1986 | 3,260 |
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