| Year | Value | | 2022 | 2,057,521 | | 2021 | 1,979,281 | | 2020 | 1,896,191 | | 2019 | 1,797,059 | | 2018 | 1,686,142 | | 2017 | 1,592,413 | | 2016 | 1,523,577 | | 2015 | 1,473,295 | | 2014 | 1,446,408 | | 2013 | 1,436,282 | | 2012 | 1,417,111 | | 2011 | 1,384,234 | | 2010 | 1,348,560 | | 2009 | 1,315,584 | | 2008 | 1,288,476 | | 2007 | 1,264,714 | | 2006 | 1,240,288 | | 2005 | 1,213,264 | | 2004 | 1,183,618 | | 2003 | 1,151,652 | | 2002 | 1,117,993 | | 2001 | 1,083,472 | | 2000 | 1,048,729 | | 1999 | 1,011,958 | | 1998 | 975,485 | | 1997 | 944,357 | | 1996 | 918,523 | | 1995 | 896,281 | | 1994 | 877,011 | | 1993 | 860,700 | | 1992 | 846,395 | | 1991 | 833,927 | | 1990 | 821,803 | | 1989 | 809,842 | | 1988 | 798,989 | | 1987 | 787,343 | | 1986 | 774,451 | | 1985 | 760,900 | | 1984 | 746,608 | | 1983 | 731,223 | | 1982 | 715,014 | | 1981 | 698,224 | | 1980 | 681,080 | | 1979 | 663,764 | | 1978 | 646,292 | | 1977 | 628,367 | | 1976 | 609,800 | | 1975 | 591,039 | | 1974 | 573,281 | | 1973 | 556,022 | | 1972 | 538,264 | | 1971 | 539,052 | | 1970 | 540,635 | | 1969 | 522,861 | | 1968 | 502,799 | | 1967 | 482,189 | | 1966 | 462,486 | | 1965 | 444,628 | | 1964 | 428,346 | | 1963 | 413,635 | | 1962 | 400,415 | | 1961 | 387,267 | | 1960 | 373,340 |
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