| Year | Value | | 2024 | 944,594 | | 2023 | 917,898 | | 2022 | 898,981 | | 2021 | 884,655 | | 2020 | 871,076 | | 2019 | 853,091 | | 2018 | 829,291 | | 2017 | 799,827 | | 2016 | 766,811 | | 2015 | 733,562 | | 2014 | 705,392 | | 2013 | 686,546 | | 2012 | 680,416 | | 2011 | 680,388 | | 2010 | 681,498 | | 2009 | 685,118 | | 2008 | 689,394 | | 2007 | 693,709 | | 2006 | 702,634 | | 2005 | 724,684 | | 2004 | 755,458 | | 2003 | 783,785 | | 2002 | 804,557 | | 2001 | 813,084 | | 2000 | 807,477 | | 1999 | 786,906 | | 1998 | 749,581 | | 1997 | 703,317 | | 1996 | 653,457 | | 1995 | 606,808 | | 1994 | 574,594 | | 1993 | 557,133 | | 1992 | 573,865 | | 1991 | 583,806 | | 1990 | 560,473 | | 1989 | 539,387 | | 1988 | 523,478 | | 1987 | 518,068 | | 1986 | 511,070 | | 1985 | 495,325 | | 1984 | 478,056 | | 1983 | 459,732 | | 1982 | 434,511 | | 1981 | 406,032 | | 1980 | 338,061 | | 1979 | 284,347 | | 1978 | 299,917 | | 1977 | 318,181 | | 1976 | 320,163 | | 1975 | 315,637 |
|