Year | Value | 2022 | 36,408,820 | 2021 | 35,950,396 | 2020 | 35,997,107 | 2019 | 35,827,362 | 2018 | 35,018,133 | 2017 | 34,193,122 | 2016 | 33,416,270 | 2015 | 32,749,848 | 2014 | 32,125,564 | 2013 | 31,482,498 | 2012 | 30,821,543 | 2011 | 30,150,945 | 2010 | 29,411,929 | 2009 | 28,483,797 | 2008 | 27,437,353 | 2007 | 26,400,068 | 2006 | 25,382,870 | 2005 | 24,397,644 | 2004 | 23,661,808 | 2003 | 23,150,847 | 2002 | 22,623,415 | 2001 | 22,085,929 | 2000 | 21,547,390 | 1999 | 21,009,660 | 1998 | 20,472,580 | 1997 | 19,938,377 | 1996 | 19,410,280 | 1995 | 18,888,857 | 1994 | 18,367,528 | 1993 | 17,846,461 | 1992 | 17,281,350 | 1991 | 16,654,276 | 1990 | 16,004,763 | 1989 | 15,353,227 | 1988 | 14,713,715 | 1987 | 14,089,798 | 1986 | 13,483,349 | 1985 | 12,890,245 | 1984 | 12,310,361 | 1983 | 11,746,020 | 1982 | 11,201,154 | 1981 | 10,678,211 | 1980 | 10,171,710 | 1979 | 9,682,002 | 1978 | 9,210,564 | 1977 | 8,755,219 | 1976 | 8,319,556 | 1975 | 7,897,544 | 1974 | 7,483,506 | 1973 | 7,088,758 | 1972 | 6,724,260 | 1971 | 6,396,658 | 1970 | 6,106,191 | 1969 | 5,844,843 | 1968 | 5,604,582 | 1967 | 5,381,026 | 1966 | 5,173,237 | 1965 | 4,978,922 | 1964 | 4,795,130 | 1963 | 4,621,655 | 1962 | 4,458,516 | 1961 | 4,306,048 | 1960 | 4,165,563 |
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