Year | Value | 2022 | 569,659 | 2021 | 559,826 | 2020 | 550,500 | 2019 | 540,455 | 2018 | 530,101 | 2017 | 520,315 | 2016 | 512,577 | 2015 | 508,432 | 2014 | 506,305 | 2013 | 505,541 | 2012 | 505,514 | 2011 | 503,445 | 2010 | 500,259 | 2009 | 500,852 | 2008 | 507,354 | 2007 | 521,874 | 2006 | 545,291 | 2005 | 574,022 | 2004 | 603,988 | 2003 | 627,689 | 2002 | 640,598 | 2001 | 644,795 | 2000 | 644,067 | 1999 | 642,046 | 1998 | 642,137 | 1997 | 643,900 | 1996 | 645,205 | 1995 | 643,532 | 1994 | 637,581 | 1993 | 628,863 | 1992 | 618,942 | 1991 | 608,315 | 1990 | 598,229 | 1989 | 588,908 | 1988 | 580,282 | 1987 | 573,665 | 1986 | 567,564 | 1985 | 562,004 | 1984 | 559,550 | 1983 | 561,645 | 1982 | 569,817 | 1981 | 584,742 | 1980 | 583,886 | 1979 | 565,749 | 1978 | 545,310 | 1977 | 513,529 | 1976 | 470,328 | 1975 | 441,710 | 1974 | 428,790 | 1973 | 414,691 | 1972 | 404,134 | 1971 | 397,006 | 1970 | 389,742 | 1969 | 382,149 | 1968 | 376,437 | 1967 | 375,092 | 1966 | 376,624 | 1965 | 378,562 | 1964 | 380,672 | 1963 | 382,608 | 1962 | 382,782 | 1961 | 381,049 | 1960 | 379,904 |
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