| Year | Value | | 2022 | 6,282,245 | | 2021 | 6,222,067 | | 2020 | 6,133,384 | | 2019 | 6,008,352 | | 2018 | 5,856,987 | | 2017 | 5,692,194 | | 2016 | 5,519,986 | | 2015 | 5,345,385 | | 2014 | 5,171,765 | | 2013 | 4,999,728 | | 2012 | 4,832,130 | | 2011 | 4,672,082 | | 2010 | 4,519,417 | | 2009 | 4,372,327 | | 2008 | 4,214,774 | | 2007 | 4,038,078 | | 2006 | 3,851,060 | | 2005 | 3,657,601 | | 2004 | 3,467,901 | | 2003 | 3,305,687 | | 2002 | 3,179,303 | | 2001 | 3,077,644 | | 2000 | 2,994,862 | | 1999 | 2,922,960 | | 1998 | 2,853,921 | | 1997 | 2,783,266 | | 1996 | 2,710,823 | | 1995 | 2,639,325 | | 1994 | 2,569,982 | | 1993 | 2,506,131 | | 1992 | 2,450,280 | | 1991 | 2,399,663 | | 1990 | 2,351,410 | | 1989 | 2,303,156 | | 1988 | 2,251,454 | | 1987 | 2,194,313 | | 1986 | 2,131,777 | | 1985 | 2,065,647 | | 1984 | 1,996,520 | | 1983 | 1,924,094 | | 1982 | 1,849,123 | | 1981 | 1,773,032 | | 1980 | 1,697,114 | | 1979 | 1,622,344 | | 1978 | 1,550,864 | | 1977 | 1,485,784 | | 1976 | 1,429,415 | | 1975 | 1,382,002 | | 1974 | 1,341,724 | | 1973 | 1,305,849 | | 1972 | 1,272,129 | | 1971 | 1,239,074 | | 1970 | 1,204,794 | | 1969 | 1,167,691 | | 1968 | 1,128,136 | | 1967 | 1,087,284 | | 1966 | 1,045,725 | | 1965 | 1,004,498 | | 1964 | 965,613 | | 1963 | 930,367 | | 1962 | 898,594 | | 1961 | 869,744 | | 1960 | 842,979 |
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