Year | Value | 2021 | 34,020,088 | 2020 | 30,033,310 | 2019 | 92,434,079 | 2018 | 88,157,579 | 2017 | 82,818,983 | 2016 | 76,859,538 | 2015 | 66,093,149 | 2014 | 58,289,180 | 2013 | 54,530,105 | 2012 | 39,969,577.015717 | 2011 | 39,911,749.589812 | 2010 | 36,987,982 | 2009 | 34,168,590 | 2008 | 36,077,655 | 2007 | 36,655,313 | 2006 | 34,842,655 | 2005 | 33,888,328 | 2004 | 34,511,494 | 2003 | 33,372,577 | 2002 | 34,831,814 | 2001 | 33,710,340 | 2000 | 34,331,368 | 1999 | 30,870,200 | 1998 | 27,109,000 | 1997 | 35,505,800 | 1996 | 33,002,700 | 1995 | 29,345,200 | 1994 | 24,932,300 | 1993 | 21,425,900 | 1992 | 19,766,900 | 1991 | 16,908,000 | 1990 | 15,684,500 | 1989 | 13,160,800 | 1988 | 9,826,000 | 1987 | 8,330,900 | 1986 | 7,211,400 | 1985 | 6,202,500 | 1984 | 5,353,300 | 1983 | 4,861,500 | 1982 | 4,201,500 | 1981 | 4,186,700 | 1980 | 3,566,600 | 1979 | 3,725,900 | 1978 | 3,099,800 | 1977 | 2,466,500 | 1976 | 2,075,200 | 1975 | 2,046,700 | 1974 | 1,923,800 | 1973 | 2,213,400 | 1972 | 1,640,000 | 1971 | 1,463,600 | 1970 | 1,208,100 |
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