Year | Value | 2022 | 56,879,731 | 2021 | 56,062,865 | 2020 | 55,243,033 | 2019 | 54,369,671 | 2018 | 53,496,816 | 2017 | 52,616,948 | 2016 | 51,723,461 | 2015 | 50,842,060 | 2014 | 50,025,302 | 2013 | 49,244,938 | 2012 | 48,444,531 | 2011 | 47,631,255 | 2010 | 46,804,421 | 2009 | 45,954,012 | 2008 | 45,083,466 | 2007 | 44,228,376 | 2006 | 43,410,285 | 2005 | 42,611,126 | 2004 | 41,805,071 | 2003 | 40,992,524 | 2002 | 40,184,410 | 2001 | 39,376,849 | 2000 | 38,563,851 | 1999 | 37,724,573 | 1998 | 36,858,936 | 1997 | 35,987,353 | 1996 | 35,116,553 | 1995 | 34,286,729 | 1994 | 33,505,843 | 1993 | 32,741,816 | 1992 | 31,989,942 | 1991 | 31,254,680 | 1990 | 30,529,390 | 1989 | 29,826,504 | 1988 | 29,152,392 | 1987 | 28,493,194 | 1986 | 27,851,096 | 1985 | 27,213,712 | 1984 | 26,576,739 | 1983 | 25,940,783 | 1982 | 25,311,212 | 1981 | 24,692,119 | 1980 | 24,066,768 | 1979 | 23,419,361 | 1978 | 22,760,891 | 1977 | 22,114,002 | 1976 | 21,496,761 | 1975 | 20,935,999 | 1974 | 20,459,531 | 1973 | 20,025,867 | 1972 | 19,588,074 | 1971 | 19,154,478 | 1970 | 18,709,200 | 1969 | 18,237,560 | 1968 | 17,755,521 | 1967 | 17,277,118 | 1966 | 16,806,875 | 1965 | 16,343,075 | 1964 | 15,884,274 | 1963 | 15,432,805 | 1962 | 14,988,979 | 1961 | 14,552,871 | 1960 | 14,113,720 |
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