Year | Value | 2022 | 40,674,956 | 2021 | 39,965,192 | 2020 | 39,312,956 | 2019 | 38,534,107 | 2018 | 37,796,805 | 2017 | 37,100,046 | 2016 | 36,377,737 | 2015 | 35,626,923 | 2014 | 34,888,622 | 2013 | 34,158,005 | 2012 | 33,482,236 | 2011 | 32,760,953 | 2010 | 31,987,710 | 2009 | 31,072,346 | 2008 | 30,184,800 | 2007 | 29,321,192 | 2006 | 28,379,205 | 2005 | 27,447,937 | 2004 | 26,566,758 | 2003 | 25,645,345 | 2002 | 24,749,557 | 2001 | 23,869,353 | 2000 | 22,968,821 | 1999 | 22,341,365 | 1998 | 22,145,943 | 1997 | 22,130,092 | 1996 | 22,062,178 | 1995 | 21,841,490 | 1994 | 21,371,857 | 1993 | 20,743,932 | 1992 | 20,043,671 | 1991 | 19,318,612 | 1990 | 18,624,090 | 1989 | 17,944,602 | 1988 | 17,282,590 | 1987 | 16,634,107 | 1986 | 16,043,218 | 1985 | 15,503,917 | 1984 | 14,966,651 | 1983 | 14,465,453 | 1982 | 13,923,166 | 1981 | 13,366,873 | 1980 | 12,864,842 | 1979 | 12,382,780 | 1978 | 11,915,764 | 1977 | 11,455,506 | 1976 | 11,032,248 | 1975 | 10,634,581 | 1974 | 10,254,606 | 1973 | 9,921,974 | 1972 | 9,612,300 | 1971 | 9,295,191 | 1970 | 8,972,424 | 1969 | 8,654,931 | 1968 | 8,339,872 | 1967 | 8,035,567 | 1966 | 7,739,026 | 1965 | 7,460,265 | 1964 | 7,171,952 | 1963 | 6,908,665 | 1962 | 6,684,198 | 1961 | 6,444,673 | 1960 | 6,204,063 |
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