Year | Value | 2021 | 33,073,180 | 2020 | 25,758,450 | 2019 | 109,633,750.727 | 2018 | 109,796,202.17431 | 2017 | 114,160,685 | 2016 | 116,713,587 | 2015 | 117,222,850 | 2014 | 112,353,098.59355 | 2013 | 109,062,321.51578 | 2012 | 105,978,474.52638 | 2011 | 107,042,775.79118 | 2010 | 97,330,734.280759 | 2009 | 103,396,735 | 2008 | 107,941,584 | 2007 | 106,101,747 | 2006 | 99,647,314 | 2005 | 90,788,848 | 2004 | 82,099,657 | 2003 | 72,693,124 | 2002 | 61,889,678 | 2001 | 56,389,365 | 2000 | 57,962,865 | 1999 | 54,652,800 | 1998 | 49,279,800 | 1997 | 45,804,500 | 1996 | 40,118,400 | 1995 | 34,680,100 | 1994 | 32,465,300 | 1993 | 29,362,600 | 1992 | 27,577,800 | 1991 | 24,829,500 | 1990 | 22,146,900 | 1989 | 19,056,900 | 1988 | 17,894,900 | 1987 | 17,011,400 | 1986 | 15,174,000 | 1985 | 14,551,300 | 1984 | 14,051,800 | 1983 | 13,099,900 | 1982 | 12,755,000 | 1981 | 12,964,400 | 1980 | 13,046,400 | 1979 | 12,843,900 | 1978 | 11,709,800 | 1977 | 10,907,500 | 1976 | 10,418,600 | 1975 | 9,369,200 | 1974 | 8,886,900 | 1973 | 7,371,300 | 1972 | 7,919,100 | 1971 | 7,029,200 | 1970 | 6,498,000 |
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