Year | Value | 2022 | 43,209,631 | 2021 | 43,456,067 | 2020 | 43,862,004 | 2019 | 44,045,374 | 2018 | 44,177,425 | 2017 | 44,205,774 | 2016 | 43,926,510 | 2015 | 43,474,233 | 2014 | 43,212,917 | 2013 | 43,032,994 | 2012 | 42,794,002 | 2011 | 42,651,882 | 2010 | 42,608,234 | 2009 | 42,310,588 | 2008 | 41,928,072 | 2007 | 41,525,828 | 2006 | 41,093,430 | 2005 | 40,589,913 | 2004 | 40,033,386 | 2003 | 39,410,963 | 2002 | 38,793,428 | 2001 | 38,395,647 | 2000 | 37,933,381 | 1999 | 37,374,646 | 1998 | 37,129,077 | 1997 | 37,052,782 | 1996 | 36,543,442 | 1995 | 35,384,329 | 1994 | 34,062,986 | 1993 | 32,763,338 | 1992 | 31,351,966 | 1991 | 30,066,995 | 1990 | 29,590,814 | 1989 | 29,500,648 | 1988 | 29,100,831 | 1987 | 28,692,250 | 1986 | 28,478,623 | 1985 | 28,233,455 | 1984 | 27,897,996 | 1983 | 27,675,851 | 1982 | 27,525,319 | 1981 | 27,409,169 | 1980 | 27,434,973 | 1979 | 27,660,492 | 1978 | 27,783,026 | 1977 | 27,723,800 | 1976 | 27,547,052 | 1975 | 27,121,712 | 1974 | 26,433,223 | 1973 | 25,892,691 | 1972 | 25,496,019 | 1971 | 25,012,203 | 1970 | 24,631,538 | 1969 | 24,209,810 | 1968 | 23,139,362 | 1967 | 21,791,810 | 1966 | 20,736,236 | 1965 | 19,897,737 | 1964 | 19,616,547 | 1963 | 20,134,040 | 1962 | 21,026,098 | 1961 | 21,839,432 | 1960 | 22,417,293 |
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