| Year | Value | | 2024 | 818,494 | | 2023 | 793,145 | | 2022 | 764,629 | | 2021 | 731,144 | | 2020 | 694,829 | | 2019 | 662,223 | | 2018 | 638,944 | | 2017 | 628,803 | | 2016 | 630,033 | | 2015 | 639,343 | | 2014 | 653,837 | | 2013 | 669,431 | | 2012 | 680,583 | | 2011 | 698,479 | | 2010 | 729,239 | | 2009 | 762,165 | | 2008 | 794,951 | | 2007 | 825,499 | | 2006 | 838,434 | | 2005 | 832,184 | | 2004 | 820,244 | | 2003 | 803,883 | | 2002 | 783,930 | | 2001 | 761,335 | | 2000 | 741,549 | | 1999 | 720,344 | | 1998 | 689,243 | | 1997 | 652,844 | | 1996 | 615,453 | | 1995 | 578,634 | | 1994 | 549,520 | | 1993 | 530,130 | | 1992 | 517,659 | | 1991 | 501,878 | | 1990 | 478,947 | | 1989 | 456,012 | | 1988 | 434,873 | | 1987 | 418,699 | | 1986 | 405,257 | | 1985 | 392,463 | | 1984 | 381,900 | | 1983 | 373,363 | | 1982 | 365,088 | | 1981 | 356,381 | | 1980 | 344,003 | | 1979 | 330,103 | | 1978 | 319,689 | | 1977 | 310,530 | | 1976 | 301,312 | | 1975 | 292,085 |
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