| Year | Value | | 2024 | 804,489 | | 2023 | 800,599 | | 2022 | 799,822 | | 2021 | 801,246 | | 2020 | 803,383 | | 2019 | 803,704 | | 2018 | 800,555 | | 2017 | 796,239 | | 2016 | 792,559 | | 2015 | 788,316 | | 2014 | 782,830 | | 2013 | 776,904 | | 2012 | 771,210 | | 2011 | 765,068 | | 2010 | 758,190 | | 2009 | 750,895 | | 2008 | 742,130 | | 2007 | 731,366 | | 2006 | 720,351 | | 2005 | 710,940 | | 2004 | 703,598 | | 2003 | 697,263 | | 2002 | 690,750 | | 2001 | 683,368 | | 2000 | 674,562 | | 1999 | 664,153 | | 1998 | 653,168 | | 1997 | 642,809 | | 1996 | 632,864 | | 1995 | 623,122 | | 1994 | 613,690 | | 1993 | 604,521 | | 1992 | 595,169 | | 1991 | 585,614 | | 1990 | 575,726 | | 1989 | 565,078 | | 1988 | 553,688 | | 1987 | 541,474 | | 1986 | 528,558 | | 1985 | 515,103 | | 1984 | 501,251 | | 1983 | 487,220 | | 1982 | 473,221 | | 1981 | 459,377 | | 1980 | 445,681 | | 1979 | 432,234 | | 1978 | 419,111 | | 1977 | 406,315 | | 1976 | 393,895 | | 1975 | 381,878 |
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