Year | Value | 2022 | 536,666 | 2021 | 517,783 | 2020 | 533,555 | 2019 | 560,569 | 2018 | 594,114 | 2017 | 631,861 | 2016 | 670,020 | 2015 | 707,731 | 2014 | 736,424 | 2013 | 749,906 | 2012 | 753,724 | 2011 | 751,177 | 2010 | 743,356 | 2009 | 738,382 | 2008 | 732,306 | 2007 | 718,250 | 2006 | 695,737 | 2005 | 656,499 | 2004 | 610,712 | 2003 | 576,462 | 2002 | 558,569 | 2001 | 559,521 | 2000 | 574,069 | 1999 | 595,792 | 1998 | 624,945 | 1997 | 656,530 | 1996 | 686,201 | 1995 | 705,449 | 1994 | 709,534 | 1993 | 705,280 | 1992 | 704,322 | 1991 | 708,238 | 1990 | 713,801 | 1989 | 717,008 | 1988 | 717,987 | 1987 | 712,645 | 1986 | 703,991 | 1985 | 697,593 | 1984 | 691,684 | 1983 | 686,763 | 1982 | 681,188 | 1981 | 676,499 | 1980 | 663,813 | 1979 | 643,587 | 1978 | 592,570 | 1977 | 512,924 | 1976 | 449,861 | 1975 | 418,424 | 1974 | 417,839 | 1973 | 456,342 | 1972 | 518,548 | 1971 | 565,317 | 1970 | 588,299 | 1969 | 592,750 | 1968 | 584,847 | 1967 | 567,430 | 1966 | 544,359 | 1965 | 524,975 | 1964 | 508,838 | 1963 | 493,837 | 1962 | 480,581 | 1961 | 469,509 | 1960 | 459,489 |
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