Year | Value | 2022 | 32,174,378 | 2021 | 30,966,372 | 2020 | 29,761,150 | 2019 | 28,450,395 | 2018 | 27,281,883 | 2017 | 26,319,220 | 2016 | 25,446,109 | 2015 | 24,691,988 | 2014 | 24,062,066 | 2013 | 23,534,326 | 2012 | 23,063,702 | 2011 | 22,597,475 | 2010 | 22,095,922 | 2009 | 21,561,251 | 2008 | 20,986,299 | 2007 | 20,387,778 | 2006 | 19,803,287 | 2005 | 19,250,186 | 2004 | 18,716,923 | 2003 | 18,178,760 | 2002 | 17,635,678 | 2001 | 17,089,177 | 2000 | 16,541,251 | 1999 | 15,995,038 | 1998 | 15,457,744 | 1997 | 14,931,576 | 1996 | 14,419,992 | 1995 | 13,934,397 | 1994 | 13,486,330 | 1993 | 13,066,687 | 1992 | 12,665,472 | 1991 | 12,285,138 | 1990 | 11,927,384 | 1989 | 11,597,558 | 1988 | 11,301,881 | 1987 | 11,024,198 | 1986 | 10,762,187 | 1985 | 10,508,518 | 1984 | 10,257,631 | 1983 | 10,012,989 | 1982 | 9,768,752 | 1981 | 9,510,869 | 1980 | 9,237,272 | 1979 | 8,946,599 | 1978 | 8,629,287 | 1977 | 8,297,853 | 1976 | 7,979,023 | 1975 | 7,697,948 | 1974 | 7,462,402 | 1973 | 7,274,515 | 1972 | 7,122,219 | 1971 | 6,976,767 | 1970 | 6,801,372 | 1969 | 6,577,822 | 1968 | 6,301,160 | 1967 | 5,990,347 | 1966 | 5,707,669 | 1965 | 5,491,239 | 1964 | 5,334,257 | 1963 | 5,248,715 | 1962 | 5,222,890 | 1961 | 5,181,410 | 1960 | 5,082,562 |
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