Year | Value | 2022 | 24,781,464 | 2021 | 24,865,558 | 2020 | 24,872,983 | 2019 | 24,824,025 | 2018 | 24,725,533 | 2017 | 24,611,956 | 2016 | 24,513,936 | 2015 | 24,439,087 | 2014 | 24,371,704 | 2013 | 24,288,949 | 2012 | 24,191,328 | 2011 | 24,070,198 | 2010 | 23,916,936 | 2009 | 23,782,657 | 2008 | 23,652,492 | 2007 | 23,504,723 | 2006 | 23,322,846 | 2005 | 23,103,486 | 2004 | 22,845,768 | 2003 | 22,563,415 | 2002 | 22,254,930 | 2001 | 21,926,363 | 2000 | 21,595,554 | 1999 | 21,260,135 | 1998 | 20,933,542 | 1997 | 20,625,197 | 1996 | 20,322,454 | 1995 | 20,018,966 | 1994 | 19,707,590 | 1993 | 19,384,691 | 1992 | 19,058,820 | 1991 | 18,748,219 | 1990 | 18,459,001 | 1989 | 18,205,307 | 1988 | 17,978,678 | 1987 | 17,736,277 | 1986 | 17,453,509 | 1985 | 17,118,020 | 1984 | 16,732,601 | 1983 | 16,309,246 | 1982 | 15,869,024 | 1981 | 15,425,732 | 1980 | 14,980,940 | 1979 | 14,547,091 | 1978 | 14,129,787 | 1977 | 13,722,012 | 1976 | 13,337,357 | 1975 | 12,969,886 | 1974 | 12,601,195 | 1973 | 12,219,384 | 1972 | 11,815,455 | 1971 | 11,397,790 | 1970 | 10,972,295 | 1969 | 10,550,628 | 1968 | 10,164,532 | 1967 | 9,835,550 | 1966 | 9,559,085 | 1965 | 9,307,780 | 1964 | 9,064,108 | 1963 | 8,831,122 | 1962 | 8,599,954 | 1961 | 8,369,535 | 1960 | 8,144,301 |
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