| Year | Value | | 2024 | 1,074,813 | | 2023 | 1,022,934 | | 2022 | 982,585 | | 2021 | 953,387 | | 2020 | 921,173 | | 2019 | 888,091 | | 2018 | 860,570 | | 2017 | 836,051 | | 2016 | 813,570 | | 2015 | 793,199 | | 2014 | 768,845 | | 2013 | 741,836 | | 2012 | 716,706 | | 2011 | 687,601 | | 2010 | 661,689 | | 2009 | 641,140 | | 2008 | 616,779 | | 2007 | 602,043 | | 2006 | 589,388 | | 2005 | 564,697 | | 2004 | 544,402 | | 2003 | 524,817 | | 2002 | 493,528 | | 2001 | 468,591 | | 2000 | 465,771 | | 1999 | 461,249 | | 1998 | 445,528 | | 1997 | 430,392 | | 1996 | 415,983 | | 1995 | 401,418 | | 1994 | 383,799 | | 1993 | 354,285 | | 1992 | 315,838 | | 1991 | 291,831 | | 1990 | 286,946 | | 1989 | 283,324 | | 1988 | 278,270 | | 1987 | 279,915 | | 1986 | 286,032 | | 1985 | 291,352 | | 1984 | 287,894 | | 1983 | 279,915 | | 1982 | 278,626 | | 1981 | 298,123 | | 1980 | 325,164 | | 1979 | 335,051 | | 1978 | 333,906 | | 1977 | 329,029 | | 1976 | 324,517 | | 1975 | 319,582 |
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