Year | Value | 2022 | 27,846,616 | 2021 | 26,798,281 | 2020 | 25,733,538 | 2019 | 24,691,256 | 2018 | 23,718,079 | 2017 | 22,834,980 | 2016 | 22,057,732 | 2015 | 21,339,414 | 2014 | 20,653,143 | 2013 | 20,012,074 | 2012 | 19,391,138 | 2011 | 18,779,320 | 2010 | 18,177,676 | 2009 | 17,588,461 | 2008 | 17,014,332 | 2007 | 16,456,209 | 2006 | 15,912,859 | 2005 | 15,384,965 | 2004 | 14,872,345 | 2003 | 14,379,202 | 2002 | 13,908,159 | 2001 | 13,464,694 | 2000 | 13,059,483 | 1999 | 12,697,198 | 1998 | 12,371,905 | 1997 | 12,078,879 | 1996 | 11,818,726 | 1995 | 11,562,757 | 1994 | 11,283,225 | 1993 | 11,001,800 | 1992 | 10,753,550 | 1991 | 10,524,079 | 1990 | 10,294,800 | 1989 | 10,080,876 | 1988 | 9,877,424 | 1987 | 9,635,137 | 1986 | 9,353,250 | 1985 | 9,092,740 | 1984 | 8,860,260 | 1983 | 8,645,669 | 1982 | 8,441,861 | 1981 | 8,241,002 | 1980 | 8,057,318 | 1979 | 7,878,307 | 1978 | 7,687,007 | 1977 | 7,507,095 | 1976 | 7,346,665 | 1975 | 7,189,361 | 1974 | 7,032,018 | 1973 | 6,877,230 | 1972 | 6,729,617 | 1971 | 6,587,652 | 1970 | 6,448,846 | 1969 | 6,318,062 | 1968 | 6,193,226 | 1967 | 6,071,519 | 1966 | 5,953,230 | 1965 | 5,836,752 | 1964 | 5,722,361 | 1963 | 5,609,506 | 1962 | 5,497,071 | 1961 | 5,385,466 | 1960 | 5,274,997 |
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