Year | Value | 2022 | 40,009,531 | 2021 | 39,046,349 | 2020 | 38,075,687 | 2019 | 37,090,136 | 2018 | 36,108,574 | 2017 | 35,129,978 | 2016 | 34,178,276 | 2015 | 33,204,970 | 2014 | 32,183,844 | 2013 | 31,151,006 | 2012 | 30,093,236 | 2011 | 29,013,749 | 2010 | 27,921,048 | 2009 | 26,856,222 | 2008 | 25,866,283 | 2007 | 24,975,102 | 2006 | 24,185,106 | 2005 | 23,476,393 | 2004 | 22,819,141 | 2003 | 22,194,190 | 2002 | 21,583,086 | 2001 | 20,971,445 | 2000 | 20,358,095 | 1999 | 19,746,589 | 1998 | 19,136,188 | 1997 | 18,546,759 | 1996 | 18,000,317 | 1995 | 17,461,812 | 1994 | 16,907,493 | 1993 | 16,386,906 | 1992 | 15,896,890 | 1991 | 15,399,266 | 1990 | 14,921,822 | 1989 | 14,482,502 | 1988 | 14,087,025 | 1987 | 13,725,430 | 1986 | 13,370,238 | 1985 | 13,049,511 | 1984 | 12,735,192 | 1983 | 12,413,304 | 1982 | 12,116,465 | 1981 | 11,835,274 | 1980 | 11,546,997 | 1979 | 11,274,385 | 1978 | 11,017,798 | 1977 | 10,730,099 | 1976 | 10,427,357 | 1975 | 10,119,494 | 1974 | 9,814,878 | 1973 | 9,539,151 | 1972 | 9,303,620 | 1971 | 9,093,647 | 1970 | 8,894,222 | 1969 | 8,704,972 | 1968 | 8,522,411 | 1967 | 8,344,606 | 1966 | 8,175,649 | 1965 | 8,015,583 | 1964 | 7,860,317 | 1963 | 7,708,181 | 1962 | 7,560,126 | 1961 | 7,416,420 | 1960 | 7,275,456 |
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