| Year | Value | | 2022 | 10,432,860 | | 2021 | 10,278,345 | | 2020 | 10,121,763 | | 2019 | 9,958,829 | | 2018 | 9,792,850 | | 2017 | 9,626,842 | | 2016 | 9,460,798 | | 2015 | 9,294,505 | | 2014 | 9,127,846 | | 2013 | 8,960,657 | | 2012 | 8,792,367 | | 2011 | 8,622,504 | | 2010 | 8,450,933 | | 2009 | 8,277,302 | | 2008 | 8,101,777 | | 2007 | 7,924,462 | | 2006 | 7,745,200 | | 2005 | 7,564,613 | | 2004 | 7,383,407 | | 2003 | 7,201,881 | | 2002 | 7,019,908 | | 2001 | 6,837,861 | | 2000 | 6,656,725 | | 1999 | 6,477,365 | | 1998 | 6,308,537 | | 1997 | 6,144,112 | | 1996 | 5,976,550 | | 1995 | 5,812,832 | | 1994 | 5,652,934 | | 1993 | 5,496,841 | | 1992 | 5,344,774 | | 1991 | 5,196,887 | | 1990 | 5,053,234 | | 1989 | 4,913,676 | | 1988 | 4,778,114 | | 1987 | 4,645,733 | | 1986 | 4,515,568 | | 1985 | 4,387,693 | | 1984 | 4,261,919 | | 1983 | 4,137,784 | | 1982 | 4,015,647 | | 1981 | 3,895,736 | | 1980 | 3,777,990 | | 1979 | 3,662,736 | | 1978 | 3,550,368 | | 1977 | 3,441,122 | | 1976 | 3,334,814 | | 1975 | 3,231,631 | | 1974 | 3,136,539 | | 1973 | 3,046,715 | | 1972 | 2,956,021 | | 1971 | 2,867,501 | | 1970 | 2,782,753 | | 1969 | 2,701,381 | | 1968 | 2,622,982 | | 1967 | 2,547,497 | | 1966 | 2,474,523 | | 1965 | 2,403,465 | | 1964 | 2,334,492 | | 1963 | 2,267,708 | | 1962 | 2,202,854 | | 1961 | 2,139,928 | | 1960 | 2,078,617 |
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