| Year | Value | | 2022 | 8,288,880 | | 2021 | 8,028,112 | | 2020 | 7,758,699 | | 2019 | 7,498,058 | | 2018 | 7,234,463 | | 2017 | 6,967,828 | | 2016 | 6,724,764 | | 2015 | 6,507,213 | | 2014 | 6,293,487 | | 2013 | 6,078,419 | | 2012 | 5,868,076 | | 2011 | 5,655,174 | | 2010 | 5,431,920 | | 2009 | 5,204,927 | | 2008 | 4,973,451 | | 2007 | 4,746,217 | | 2006 | 4,531,334 | | 2005 | 4,321,307 | | 2004 | 4,110,796 | | 2003 | 3,911,202 | | 2002 | 3,732,240 | | 2001 | 3,571,957 | | 2000 | 3,436,967 | | 1999 | 3,335,006 | | 1998 | 3,265,284 | | 1997 | 3,215,180 | | 1996 | 3,172,454 | | 1995 | 3,138,119 | | 1994 | 3,108,092 | | 1993 | 3,074,825 | | 1992 | 3,033,467 | | 1991 | 2,982,821 | | 1990 | 2,926,201 | | 1989 | 2,847,079 | | 1988 | 2,779,229 | | 1987 | 2,707,703 | | 1986 | 2,635,363 | | 1985 | 2,566,587 | | 1984 | 2,500,967 | | 1983 | 2,436,778 | | 1982 | 2,374,688 | | 1981 | 2,306,598 | | 1980 | 2,231,651 | | 1979 | 2,154,643 | | 1978 | 2,077,522 | | 1977 | 1,998,549 | | 1976 | 1,910,818 | | 1975 | 1,826,523 | | 1974 | 1,761,726 | | 1973 | 1,712,133 | | 1972 | 1,671,478 | | 1971 | 1,638,147 | | 1970 | 1,610,189 | | 1969 | 1,587,798 | | 1968 | 1,571,638 | | 1967 | 1,558,753 | | 1966 | 1,544,949 | | 1965 | 1,530,689 | | 1964 | 1,515,175 | | 1963 | 1,493,685 | | 1962 | 1,465,691 | | 1961 | 1,434,971 | | 1960 | 1,406,442 |
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