| Year | Value | | 2024 | 745,189 | | 2023 | 707,003 | | 2022 | 673,030 | | 2021 | 642,741 | | 2020 | 615,485 | | 2019 | 589,128 | | 2018 | 563,711 | | 2017 | 539,588 | | 2016 | 515,899 | | 2015 | 492,619 | | 2014 | 469,812 | | 2013 | 447,415 | | 2012 | 425,451 | | 2011 | 404,314 | | 2010 | 384,435 | | 2009 | 365,709 | | 2008 | 348,156 | | 2007 | 331,714 | | 2006 | 316,113 | | 2005 | 301,281 | | 2004 | 287,777 | | 2003 | 275,667 | | 2002 | 264,376 | | 2001 | 253,814 | | 2000 | 243,914 | | 1999 | 236,261 | | 1998 | 232,129 | | 1997 | 231,330 | | 1996 | 232,759 | | 1995 | 234,460 | | 1994 | 234,541 | | 1993 | 232,109 | | 1992 | 227,335 | | 1991 | 221,437 | | 1990 | 216,280 | | 1989 | 211,941 | | 1988 | 208,108 | | 1987 | 204,518 | | 1986 | 200,693 | | 1985 | 196,488 | | 1984 | 192,154 | | 1983 | 187,806 | | 1982 | 183,401 | | 1981 | 179,159 | | 1980 | 175,169 | | 1979 | 171,292 | | 1978 | 167,379 | | 1977 | 163,479 | | 1976 | 159,657 | | 1975 | 155,940 |
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