Year | Value | 2022 | 34,507,475 | 2021 | 33,462,372 | 2020 | 32,407,994 | 2019 | 31,345,011 | 2018 | 30,274,943 | 2017 | 29,181,044 | 2016 | 28,073,784 | 2015 | 26,968,796 | 2014 | 25,912,110 | 2013 | 24,949,320 | 2012 | 24,097,884 | 2011 | 23,364,956 | 2010 | 22,721,441 | 2009 | 22,144,032 | 2008 | 21,608,298 | 2007 | 21,080,997 | 2006 | 20,551,811 | 2005 | 20,023,911 | 2004 | 19,495,713 | 2003 | 18,969,076 | 2002 | 18,448,970 | 2001 | 17,930,104 | 2000 | 17,412,814 | 1999 | 16,902,953 | 1998 | 16,405,072 | 1997 | 15,928,299 | 1996 | 15,483,610 | 1995 | 15,045,576 | 1994 | 14,595,988 | 1993 | 14,167,008 | 1992 | 13,782,122 | 1991 | 13,425,444 | 1990 | 13,067,359 | 1989 | 12,674,762 | 1988 | 12,289,399 | 1987 | 11,945,593 | 1986 | 11,613,104 | 1985 | 11,276,446 | 1984 | 10,971,293 | 1983 | 10,699,664 | 1982 | 10,400,556 | 1981 | 10,085,432 | 1980 | 9,792,369 | 1979 | 9,531,640 | 1978 | 9,296,750 | 1977 | 9,096,861 | 1976 | 8,918,309 | 1975 | 8,733,025 | 1974 | 8,546,168 | 1973 | 8,363,065 | 1972 | 8,186,287 | 1971 | 8,013,510 | 1970 | 7,841,433 | 1969 | 7,674,061 | 1968 | 7,508,827 | 1967 | 7,342,598 | 1966 | 7,178,158 | 1965 | 7,016,152 | 1964 | 6,856,426 | 1963 | 6,702,130 | 1962 | 6,554,183 | 1961 | 6,411,936 | 1960 | 6,273,508 |
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