Year | Value | 2022 | 61,286,884 | 2021 | 60,051,612 | 2020 | 58,333,212 | 2019 | 55,994,075 | 2018 | 53,234,205 | 2017 | 49,993,667 | 2016 | 46,660,015 | 2015 | 43,325,407 | 2014 | 39,883,609 | 2013 | 36,951,632 | 2012 | 34,646,937 | 2011 | 33,148,602 | 2010 | 32,491,818 | 2009 | 32,445,279 | 2008 | 32,743,924 | 2007 | 33,127,220 | 2006 | 33,144,644 | 2005 | 32,840,310 | 2004 | 32,418,254 | 2003 | 31,858,485 | 2002 | 31,207,764 | 2001 | 30,502,462 | 2000 | 29,899,783 | 1999 | 29,479,723 | 1998 | 29,118,155 | 1997 | 28,693,306 | 1996 | 28,206,630 | 1995 | 27,662,845 | 1994 | 27,074,611 | 1993 | 26,355,106 | 1992 | 25,458,381 | 1991 | 24,555,946 | 1990 | 23,602,984 | 1989 | 22,556,862 | 1988 | 21,505,280 | 1987 | 20,571,293 | 1986 | 19,831,875 | 1985 | 19,327,314 | 1984 | 19,131,966 | 1983 | 19,146,550 | 1982 | 19,251,704 | 1981 | 19,311,869 | 1980 | 19,212,719 | 1979 | 18,920,060 | 1978 | 18,492,235 | 1977 | 18,068,574 | 1976 | 17,706,870 | 1975 | 17,381,054 | 1974 | 17,000,454 | 1973 | 16,629,150 | 1972 | 16,303,857 | 1971 | 15,943,174 | 1970 | 15,502,277 | 1969 | 14,962,065 | 1968 | 14,329,713 | 1967 | 13,698,736 | 1966 | 13,135,815 | 1965 | 12,628,120 | 1964 | 12,282,114 | 1963 | 12,083,994 | 1962 | 11,880,011 | 1961 | 11,702,734 | 1960 | 11,598,368 |
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