Year | Value | 2022 | 28,249,910 | 2021 | 27,448,061 | 2020 | 26,623,359 | 2019 | 25,786,146 | 2018 | 24,964,192 | 2017 | 24,146,390 | 2016 | 23,326,997 | 2015 | 22,522,906 | 2014 | 21,741,232 | 2013 | 20,970,829 | 2012 | 20,229,978 | 2011 | 19,531,592 | 2010 | 18,876,192 | 2009 | 18,260,388 | 2008 | 17,660,606 | 2007 | 17,112,633 | 2006 | 16,613,736 | 2005 | 16,106,591 | 2004 | 15,615,558 | 2003 | 15,156,413 | 2002 | 14,707,162 | 2001 | 14,268,988 | 2000 | 13,852,046 | 1999 | 13,442,337 | 1998 | 13,035,322 | 1997 | 12,651,029 | 1996 | 12,334,656 | 1995 | 12,041,158 | 1994 | 11,658,344 | 1993 | 11,259,207 | 1992 | 10,918,395 | 1991 | 10,608,787 | 1990 | 10,325,689 | 1989 | 10,010,395 | 1988 | 9,698,304 | 1987 | 9,436,470 | 1986 | 9,192,610 | 1985 | 8,969,979 | 1984 | 8,779,555 | 1983 | 8,597,829 | 1982 | 8,393,061 | 1981 | 8,205,441 | 1980 | 8,031,875 | 1979 | 7,838,651 | 1978 | 7,646,075 | 1977 | 7,482,065 | 1976 | 7,346,230 | 1975 | 7,207,939 | 1974 | 7,060,196 | 1973 | 6,912,203 | 1972 | 6,768,010 | 1971 | 6,627,332 | 1970 | 6,486,807 | 1969 | 6,349,882 | 1968 | 6,214,653 | 1967 | 6,078,263 | 1966 | 5,943,527 | 1965 | 5,811,603 | 1964 | 5,682,764 | 1963 | 5,559,798 | 1962 | 5,443,359 | 1961 | 5,332,004 | 1960 | 5,226,555 |
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