| Year | Value | | 2022 | 2,620,983 | | 2021 | 2,492,710 | | 2020 | 2,548,729 | | 2019 | 2,610,933 | | 2018 | 2,698,052 | | 2017 | 2,804,388 | | 2016 | 2,926,063 | | 2015 | 3,060,315 | | 2014 | 3,191,578 | | 2013 | 3,313,151 | | 2012 | 3,428,366 | | 2011 | 3,537,901 | | 2010 | 3,642,544 | | 2009 | 3,739,489 | | 2008 | 3,814,532 | | 2007 | 3,881,270 | | 2006 | 3,936,185 | | 2005 | 3,983,801 | | 2004 | 4,040,768 | | 2003 | 4,101,529 | | 2002 | 4,163,715 | | 2001 | 4,239,418 | | 2000 | 4,297,479 | | 1999 | 4,324,337 | | 1998 | 4,301,300 | | 1997 | 4,240,579 | | 1996 | 4,157,022 | | 1995 | 4,066,918 | | 1994 | 3,979,695 | | 1993 | 3,929,512 | | 1992 | 3,926,784 | | 1991 | 3,898,443 | | 1990 | 3,826,029 | | 1989 | 3,760,472 | | 1988 | 3,704,391 | | 1987 | 3,639,120 | | 1986 | 3,631,518 | | 1985 | 3,696,084 | | 1984 | 3,766,499 | | 1983 | 3,846,562 | | 1982 | 3,953,833 | | 1981 | 4,085,214 | | 1980 | 4,224,598 | | 1979 | 4,352,899 | | 1978 | 4,446,669 | | 1977 | 4,497,074 | | 1976 | 4,512,143 | | 1975 | 4,494,402 | | 1974 | 4,451,204 | | 1973 | 4,393,972 | | 1972 | 4,316,618 | | 1971 | 4,203,287 | | 1970 | 4,026,352 | | 1969 | 3,816,880 | | 1968 | 3,615,379 | | 1967 | 3,421,710 | | 1966 | 3,277,701 | | 1965 | 3,243,318 | | 1964 | 3,278,761 | | 1963 | 3,318,201 | | 1962 | 3,367,014 | | 1961 | 3,417,810 | | 1960 | 3,457,198 |
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