| Year | Value | | 2024 | 1,087,433 | | 2023 | 1,034,625 | | 2022 | 993,827 | | 2021 | 966,277 | | 2020 | 936,708 | | 2019 | 905,500 | | 2018 | 879,728 | | 2017 | 856,356 | | 2016 | 833,506 | | 2015 | 811,475 | | 2014 | 784,781 | | 2013 | 754,790 | | 2012 | 726,198 | | 2011 | 693,178 | | 2010 | 662,952 | | 2009 | 637,674 | | 2008 | 608,393 | | 2007 | 588,346 | | 2006 | 570,128 | | 2005 | 540,168 | | 2004 | 514,523 | | 2003 | 490,103 | | 2002 | 455,785 | | 2001 | 428,509 | | 2000 | 422,530 | | 1999 | 416,022 | | 1998 | 400,597 | | 1997 | 386,561 | | 1996 | 373,647 | | 1995 | 361,092 | | 1994 | 346,302 | | 1993 | 320,773 | | 1992 | 287,329 | | 1991 | 267,332 | | 1990 | 265,039 | | 1989 | 263,483 | | 1988 | 258,194 | | 1987 | 258,768 | | 1986 | 265,454 | | 1985 | 273,443 | | 1984 | 275,637 | | 1983 | 275,876 | | 1982 | 283,268 | | 1981 | 311,051 | | 1980 | 345,610 | | 1979 | 361,091 | | 1978 | 363,188 | | 1977 | 359,624 | | 1976 | 355,792 | | 1975 | 351,463 |
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