| Year | Value | | 2024 | 852,067 | | 2023 | 794,786 | | 2022 | 735,746 | | 2021 | 684,523 | | 2020 | 650,139 | | 2019 | 620,990 | | 2018 | 592,458 | | 2017 | 566,315 | | 2016 | 545,384 | | 2015 | 529,571 | | 2014 | 519,202 | | 2013 | 510,262 | | 2012 | 504,850 | | 2011 | 502,468 | | 2010 | 501,557 | | 2009 | 500,074 | | 2008 | 497,978 | | 2007 | 494,540 | | 2006 | 490,419 | | 2005 | 486,247 | | 2004 | 483,401 | | 2003 | 481,022 | | 2002 | 478,317 | | 2001 | 474,332 | | 2000 | 468,820 | | 1999 | 459,463 | | 1998 | 444,673 | | 1997 | 426,453 | | 1996 | 407,531 | | 1995 | 391,085 | | 1994 | 380,529 | | 1993 | 375,650 | | 1992 | 372,012 | | 1991 | 366,119 | | 1990 | 357,248 | | 1989 | 344,291 | | 1988 | 329,289 | | 1987 | 316,622 | | 1986 | 304,400 | | 1985 | 293,739 | | 1984 | 284,043 | | 1983 | 274,599 | | 1982 | 264,806 | | 1981 | 254,529 | | 1980 | 244,938 | | 1979 | 235,784 | | 1978 | 227,449 | | 1977 | 220,048 | | 1976 | 213,509 | | 1975 | 207,085 |
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