| Year | Value | | 2022 | 10,235,302 | | 2021 | 10,102,397 | | 2020 | 9,966,563 | | 2019 | 9,818,587 | | 2018 | 9,670,494 | | 2017 | 9,531,282 | | 2016 | 9,392,982 | | 2015 | 9,253,628 | | 2014 | 9,116,815 | | 2013 | 8,974,013 | | 2012 | 8,825,075 | | 2011 | 8,677,247 | | 2010 | 8,517,368 | | 2009 | 8,341,230 | | 2008 | 8,155,015 | | 2007 | 7,957,141 | | 2006 | 7,745,263 | | 2005 | 7,525,046 | | 2004 | 7,298,286 | | 2003 | 7,060,097 | | 2002 | 6,809,481 | | 2001 | 6,549,759 | | 2000 | 6,284,236 | | 1999 | 6,019,433 | | 1998 | 5,757,769 | | 1997 | 5,496,969 | | 1996 | 5,239,080 | | 1995 | 4,986,836 | | 1994 | 4,746,778 | | 1993 | 4,527,559 | | 1992 | 4,337,954 | | 1991 | 4,189,794 | | 1990 | 4,081,014 | | 1989 | 4,000,259 | | 1988 | 3,943,925 | | 1987 | 3,905,248 | | 1986 | 3,871,868 | | 1985 | 3,843,422 | | 1984 | 3,821,558 | | 1983 | 3,798,631 | | 1982 | 3,769,919 | | 1981 | 3,732,134 | | 1980 | 3,682,626 | | 1979 | 3,620,216 | | 1978 | 3,546,957 | | 1977 | 3,466,554 | | 1976 | 3,382,936 | | 1975 | 3,299,935 | | 1974 | 3,219,890 | | 1973 | 3,142,340 | | 1972 | 3,064,792 | | 1971 | 2,984,384 | | 1970 | 2,898,248 | | 1969 | 2,804,957 | | 1968 | 2,706,482 | | 1967 | 2,607,864 | | 1966 | 2,514,230 | | 1965 | 2,433,929 | | 1964 | 2,356,477 | | 1963 | 2,277,621 | | 1962 | 2,210,152 | | 1961 | 2,155,043 | | 1960 | 2,113,296 |
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