| Year | Value | | 2022 | 10,505,165 | | 2021 | 10,472,559 | | 2020 | 10,303,077 | | 2019 | 9,907,958 | | 2018 | 9,450,207 | | 2017 | 8,970,027 | | 2016 | 8,496,880 | | 2015 | 8,061,742 | | 2014 | 7,668,529 | | 2013 | 7,315,450 | | 2012 | 7,005,767 | | 2011 | 6,740,160 | | 2010 | 6,507,972 | | 2009 | 6,294,918 | | 2008 | 6,092,834 | | 2007 | 5,895,446 | | 2006 | 5,697,747 | | 2005 | 5,498,379 | | 2004 | 5,302,963 | | 2003 | 5,113,675 | | 2002 | 4,930,862 | | 2001 | 4,753,640 | | 2000 | 4,580,948 | | 1999 | 4,410,205 | | 1998 | 4,242,795 | | 1997 | 4,083,728 | | 1996 | 3,934,466 | | 1995 | 3,790,081 | | 1994 | 3,647,846 | | 1993 | 3,509,662 | | 1992 | 3,374,948 | | 1991 | 3,241,172 | | 1990 | 3,106,825 | | 1989 | 2,972,416 | | 1988 | 2,834,462 | | 1987 | 2,695,012 | | 1986 | 2,563,451 | | 1985 | 2,444,828 | | 1984 | 2,340,815 | | 1983 | 2,253,806 | | 1982 | 2,177,892 | | 1981 | 2,101,635 | | 1980 | 2,015,735 | | 1979 | 1,917,769 | | 1978 | 1,806,498 | | 1977 | 1,685,108 | | 1976 | 1,568,769 | | 1975 | 1,469,387 | | 1974 | 1,390,283 | | 1973 | 1,335,620 | | 1972 | 1,302,413 | | 1971 | 1,278,534 | | 1970 | 1,250,181 | | 1969 | 1,211,072 | | 1968 | 1,157,908 | | 1967 | 1,093,573 | | 1966 | 1,033,697 | | 1965 | 988,327 | | 1964 | 957,364 | | 1963 | 944,449 | | 1962 | 950,690 | | 1961 | 964,883 | | 1960 | 975,602 |
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