| Year | Value | | 2022 | 11,860,395 | | 2021 | 11,658,886 | | 2020 | 11,353,414 | | 2019 | 11,039,860 | | 2018 | 10,738,374 | | 2017 | 10,457,310 | | 2016 | 10,189,813 | | 2015 | 9,923,249 | | 2014 | 9,650,973 | | 2013 | 9,350,617 | | 2012 | 9,025,493 | | 2011 | 8,709,180 | | 2010 | 8,373,392 | | 2009 | 8,026,583 | | 2008 | 7,723,880 | | 2007 | 7,484,242 | | 2006 | 7,329,247 | | 2005 | 7,272,693 | | 2004 | 7,284,645 | | 2003 | 7,341,511 | | 2002 | 7,412,638 | | 2001 | 7,394,890 | | 2000 | 7,274,194 | | 1999 | 7,062,180 | | 1998 | 6,766,336 | | 1997 | 6,472,534 | | 1996 | 6,258,505 | | 1995 | 6,160,031 | | 1994 | 6,151,951 | | 1993 | 6,201,633 | | 1992 | 6,232,062 | | 1991 | 6,221,897 | | 1990 | 6,185,837 | | 1989 | 6,098,057 | | 1988 | 5,978,688 | | 1987 | 5,824,872 | | 1986 | 5,651,503 | | 1985 | 5,451,669 | | 1984 | 5,250,998 | | 1983 | 5,065,562 | | 1982 | 4,869,098 | | 1981 | 4,686,978 | | 1980 | 4,588,982 | | 1979 | 4,575,628 | | 1978 | 4,562,041 | | 1977 | 4,595,513 | | 1976 | 4,678,546 | | 1975 | 4,702,768 | | 1974 | 4,643,602 | | 1973 | 4,540,006 | | 1972 | 4,421,860 | | 1971 | 4,289,901 | | 1970 | 4,183,484 | | 1969 | 4,082,922 | | 1968 | 3,982,127 | | 1967 | 3,888,693 | | 1966 | 3,773,606 | | 1965 | 3,694,598 | | 1964 | 3,621,487 | | 1963 | 3,504,758 | | 1962 | 3,383,697 | | 1961 | 3,291,728 | | 1960 | 3,183,087 |
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