| Year | Value | | 2022 | 8,499,952 | | 2021 | 8,202,086 | | 2020 | 7,909,390 | | 2019 | 7,624,852 | | 2018 | 7,350,111 | | 2017 | 7,084,752 | | 2016 | 6,829,288 | | 2015 | 6,584,032 | | 2014 | 6,347,549 | | 2013 | 6,120,588 | | 2012 | 5,901,794 | | 2011 | 5,689,594 | | 2010 | 5,484,810 | | 2009 | 5,287,643 | | 2008 | 5,099,067 | | 2007 | 4,918,692 | | 2006 | 4,744,589 | | 2005 | 4,577,718 | | 2004 | 4,419,201 | | 2003 | 4,267,503 | | 2002 | 4,134,178 | | 2001 | 4,021,323 | | 2000 | 3,912,769 | | 1999 | 3,808,203 | | 1998 | 3,707,759 | | 1997 | 3,610,749 | | 1996 | 3,515,172 | | 1995 | 3,419,060 | | 1994 | 3,321,684 | | 1993 | 3,222,966 | | 1992 | 3,124,415 | | 1991 | 3,027,119 | | 1990 | 2,931,203 | | 1989 | 2,837,576 | | 1988 | 2,746,788 | | 1987 | 2,644,464 | | 1986 | 2,544,029 | | 1985 | 2,448,460 | | 1984 | 2,358,579 | | 1983 | 2,273,225 | | 1982 | 2,191,621 | | 1981 | 2,113,870 | | 1980 | 2,040,217 | | 1979 | 1,970,770 | | 1978 | 1,905,269 | | 1977 | 1,842,935 | | 1976 | 1,780,880 | | 1975 | 1,700,796 | | 1974 | 1,617,675 | | 1973 | 1,536,072 | | 1972 | 1,457,267 | | 1971 | 1,381,975 | | 1970 | 1,310,323 | | 1969 | 1,240,324 | | 1968 | 1,173,821 | | 1967 | 1,110,448 | | 1966 | 1,050,351 | | 1965 | 993,663 | | 1964 | 940,226 | | 1963 | 889,655 | | 1962 | 841,740 | | 1961 | 796,147 | | 1960 | 752,831 |
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