Year | Value | 2022 | 54,497,474 | 2021 | 53,887,498 | 2020 | 52,747,084 | 2019 | 51,113,848 | 2018 | 49,258,457 | 2017 | 47,292,775 | 2016 | 45,369,892 | 2015 | 43,575,955 | 2014 | 41,915,488 | 2013 | 40,352,261 | 2012 | 38,818,028 | 2011 | 37,364,832 | 2010 | 35,928,294 | 2009 | 34,468,572 | 2008 | 32,983,736 | 2007 | 31,504,908 | 2006 | 30,113,183 | 2005 | 28,738,199 | 2004 | 27,360,029 | 2003 | 26,090,976 | 2002 | 25,010,555 | 2001 | 24,070,927 | 2000 | 23,259,467 | 1999 | 22,568,093 | 1998 | 21,918,936 | 1997 | 21,356,727 | 1996 | 20,883,347 | 1995 | 20,364,099 | 1994 | 19,721,300 | 1993 | 19,005,901 | 1992 | 18,301,007 | 1991 | 17,650,870 | 1990 | 17,021,289 | 1989 | 16,339,935 | 1988 | 15,645,678 | 1987 | 14,979,678 | 1986 | 14,325,745 | 1985 | 13,688,247 | 1984 | 13,077,027 | 1983 | 12,463,361 | 1982 | 11,862,457 | 1981 | 11,296,933 | 1980 | 10,749,026 | 1979 | 10,228,970 | 1978 | 9,745,230 | 1977 | 9,278,751 | 1976 | 8,842,164 | 1975 | 8,437,501 | 1974 | 8,060,494 | 1973 | 7,730,720 | 1972 | 7,459,621 | 1971 | 7,235,204 | 1970 | 7,029,480 | 1969 | 6,806,869 | 1968 | 6,539,065 | 1967 | 6,249,060 | 1966 | 5,985,851 | 1965 | 5,763,672 | 1964 | 5,575,857 | 1963 | 5,424,046 | 1962 | 5,305,321 | 1961 | 5,228,777 | 1960 | 5,197,329 |
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