| Year | Value | | 2022 | 12,590,070 | | 2021 | 12,069,961 | | 2020 | 11,559,020 | | 2019 | 11,062,722 | | 2018 | 10,589,065 | | 2017 | 10,129,295 | | 2016 | 9,673,277 | | 2015 | 9,234,077 | | 2014 | 8,821,392 | | 2013 | 8,423,977 | | 2012 | 8,043,201 | | 2011 | 7,683,170 | | 2010 | 7,344,366 | | 2009 | 7,028,957 | | 2008 | 6,735,426 | | 2007 | 6,461,615 | | 2006 | 6,258,534 | | 2005 | 6,063,132 | | 2004 | 5,872,479 | | 2003 | 5,686,378 | | 2002 | 5,506,970 | | 2001 | 5,334,479 | | 2000 | 5,170,280 | | 1999 | 5,014,119 | | 1998 | 4,864,065 | | 1997 | 4,714,474 | | 1996 | 4,504,365 | | 1995 | 4,287,799 | | 1994 | 4,024,090 | | 1993 | 3,761,674 | | 1992 | 3,589,626 | | 1991 | 3,456,337 | | 1990 | 3,325,865 | | 1989 | 3,081,476 | | 1988 | 2,870,184 | | 1987 | 2,698,622 | | 1986 | 2,522,703 | | 1985 | 2,323,749 | | 1984 | 2,133,831 | | 1983 | 1,955,133 | | 1982 | 1,789,440 | | 1981 | 1,635,539 | | 1980 | 1,501,800 | | 1979 | 1,409,787 | | 1978 | 1,310,095 | | 1977 | 1,216,580 | | 1976 | 1,131,870 | | 1975 | 1,054,699 | | 1974 | 983,305 | | 1973 | 917,476 | | 1972 | 856,907 | | 1971 | 801,756 | | 1970 | 756,210 | | 1969 | 719,315 | | 1968 | 684,788 | | 1967 | 652,022 | | 1966 | 620,939 | | 1965 | 591,399 | | 1964 | 563,318 | | 1963 | 536,770 | | 1962 | 511,595 | | 1961 | 487,754 | | 1960 | 466,226 |
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