| Year | Value | | 2022 | 13,215,051 | | 2021 | 12,639,641 | | 2020 | 11,995,529 | | 2019 | 11,230,427 | | 2018 | 10,597,856 | | 2017 | 10,162,659 | | 2016 | 9,779,432 | | 2015 | 9,441,417 | | 2014 | 9,158,154 | | 2013 | 8,928,211 | | 2012 | 8,736,961 | | 2011 | 8,559,283 | | 2010 | 8,375,595 | | 2009 | 8,180,219 | | 2008 | 7,970,401 | | 2007 | 7,752,181 | | 2006 | 7,545,207 | | 2005 | 7,360,331 | | 2004 | 7,189,240 | | 2003 | 7,023,414 | | 2002 | 6,859,090 | | 2001 | 6,688,624 | | 2000 | 6,508,084 | | 1999 | 6,319,173 | | 1998 | 6,123,693 | | 1997 | 5,926,116 | | 1996 | 5,735,546 | | 1995 | 5,558,000 | | 1994 | 5,394,494 | | 1993 | 5,246,373 | | 1992 | 5,112,806 | | 1991 | 4,988,461 | | 1990 | 4,870,023 | | 1989 | 4,757,192 | | 1988 | 4,648,232 | | 1987 | 4,544,332 | | 1986 | 4,451,750 | | 1985 | 4,373,190 | | 1984 | 4,306,684 | | 1983 | 4,252,579 | | 1982 | 4,204,289 | | 1981 | 4,144,636 | | 1980 | 4,062,973 | | 1979 | 3,959,135 | | 1978 | 3,830,233 | | 1977 | 3,683,617 | | 1976 | 3,543,077 | | 1975 | 3,424,812 | | 1974 | 3,330,641 | | 1973 | 3,266,584 | | 1972 | 3,225,220 | | 1971 | 3,177,066 | | 1970 | 3,101,858 | | 1969 | 2,997,078 | | 1968 | 2,855,700 | | 1967 | 2,691,565 | | 1966 | 2,541,733 | | 1965 | 2,431,082 | | 1964 | 2,360,604 | | 1963 | 2,334,993 | | 1962 | 2,345,892 | | 1961 | 2,348,709 | | 1960 | 2,309,314 |
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