| Year | Value | | 2022 | 11,558,215 | | 2021 | 11,512,477 | | 2020 | 11,440,744 | | 2019 | 11,239,982 | | 2018 | 11,044,376 | | 2017 | 10,777,467 | | 2016 | 10,634,195 | | 2015 | 10,366,628 | | 2014 | 9,859,167 | | 2013 | 9,488,711 | | 2012 | 9,303,115 | | 2011 | 9,014,122 | | 2010 | 8,671,814 | | 2009 | 8,403,728 | | 2008 | 8,092,940 | | 2007 | 7,722,892 | | 2006 | 7,236,113 | | 2005 | 6,876,507 | | 2004 | 6,694,807 | | 2003 | 6,445,083 | | 2002 | 6,177,588 | | 2001 | 6,051,350 | | 2000 | 5,942,870 | | 1999 | 5,767,406 | | 1998 | 5,685,900 | | 1997 | 5,669,477 | | 1996 | 5,665,655 | | 1995 | 5,750,315 | | 1994 | 5,969,132 | | 1993 | 6,102,027 | | 1992 | 6,135,937 | | 1991 | 6,140,828 | | 1990 | 5,997,598 | | 1989 | 5,734,536 | | 1988 | 5,624,790 | | 1987 | 5,617,028 | | 1986 | 5,512,962 | | 1985 | 5,508,304 | | 1984 | 5,606,093 | | 1983 | 5,504,739 | | 1982 | 5,301,745 | | 1981 | 5,222,491 | | 1980 | 5,104,509 | | 1979 | 4,917,914 | | 1978 | 4,810,644 | | 1977 | 4,828,226 | | 1976 | 4,842,021 | | 1975 | 4,831,742 | | 1974 | 4,797,971 | | 1973 | 4,746,262 | | 1972 | 4,676,729 | | 1971 | 4,552,729 | | 1970 | 4,426,970 | | 1969 | 4,336,446 | | 1968 | 4,193,405 | | 1967 | 4,071,591 | | 1966 | 3,987,059 | | 1965 | 3,874,336 | | 1964 | 3,792,750 | | 1963 | 3,804,195 | | 1962 | 3,795,620 | | 1961 | 3,751,572 | | 1960 | 3,753,649 |
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