Year | Value | 2022 | 64,403,732 | 2021 | 61,229,689 | 2020 | 58,023,459 | 2019 | 54,567,186 | 2018 | 51,536,445 | 2017 | 49,057,751 | 2016 | 47,140,589 | 2015 | 45,876,933 | 2014 | 45,076,160 | 2013 | 44,599,688 | 2012 | 44,309,155 | 2011 | 43,809,195 | 2010 | 43,074,948 | 2009 | 42,278,674 | 2008 | 41,361,520 | 2007 | 40,270,243 | 2006 | 39,138,293 | 2005 | 38,161,239 | 2004 | 37,325,334 | 2003 | 36,522,475 | 2002 | 35,718,014 | 2001 | 34,852,072 | 2000 | 33,837,252 | 1999 | 32,723,847 | 1998 | 31,495,700 | 1997 | 30,133,198 | 1996 | 28,857,570 | 1995 | 27,675,864 | 1994 | 26,500,228 | 1993 | 25,406,486 | 1992 | 24,463,441 | 1991 | 23,621,432 | 1990 | 22,906,361 | 1989 | 22,395,091 | 1988 | 22,032,588 | 1987 | 21,720,299 | 1986 | 21,406,109 | 1985 | 21,042,847 | 1984 | 20,567,900 | 1983 | 20,010,123 | 1982 | 19,473,079 | 1981 | 18,970,355 | 1980 | 18,461,523 | 1979 | 17,917,879 | 1978 | 17,366,061 | 1977 | 16,814,336 | 1976 | 16,241,637 | 1975 | 15,665,795 | 1974 | 15,091,409 | 1973 | 14,512,297 | 1972 | 13,986,303 | 1971 | 13,528,844 | 1970 | 13,114,765 | 1969 | 12,732,044 | 1968 | 12,342,276 | 1967 | 11,930,872 | 1966 | 11,522,052 | 1965 | 11,147,304 | 1964 | 10,842,106 | 1963 | 10,641,228 | 1962 | 10,503,630 | 1961 | 10,432,188 | 1960 | 10,439,604 |
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