Year | Value | 2022 | 539,374 | 2021 | 557,037 | 2020 | 581,633 | 2019 | 607,169 | 2018 | 626,449 | 2017 | 636,377 | 2016 | 638,935 | 2015 | 637,867 | 2014 | 636,284 | 2013 | 637,394 | 2012 | 640,483 | 2011 | 642,491 | 2010 | 640,824 | 2009 | 634,493 | 2008 | 625,785 | 2007 | 616,999 | 2006 | 608,522 | 2005 | 600,664 | 2004 | 592,597 | 2003 | 584,296 | 2002 | 577,423 | 2001 | 570,112 | 2000 | 562,696 | 1999 | 558,535 | 1998 | 558,883 | 1997 | 565,404 | 1996 | 579,381 | 1995 | 579,527 | 1994 | 563,336 | 1993 | 543,666 | 1992 | 512,051 | 1991 | 469,305 | 1990 | 441,730 | 1989 | 430,001 | 1988 | 416,625 | 1987 | 406,293 | 1986 | 399,216 | 1985 | 392,170 | 1984 | 384,781 | 1983 | 379,015 | 1982 | 376,995 | 1981 | 377,829 | 1980 | 378,898 | 1979 | 379,694 | 1978 | 380,520 | 1977 | 380,098 | 1976 | 378,130 | 1975 | 375,680 | 1974 | 374,510 | 1973 | 376,642 | 1972 | 379,328 | 1971 | 381,911 | 1970 | 385,017 | 1969 | 381,597 | 1968 | 369,867 | 1967 | 359,044 | 1966 | 349,651 | 1965 | 337,955 | 1964 | 333,193 | 1963 | 337,251 | 1962 | 340,370 | 1961 | 339,981 | 1960 | 338,804 |
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