| Year | Value | | 2024 | 1,514,031 | | 2023 | 1,508,296 | | 2022 | 1,493,281 | | 2021 | 1,441,538 | | 2020 | 1,358,057 | | 2019 | 1,260,425 | | 2018 | 1,168,201 | | 2017 | 1,097,072 | | 2016 | 1,035,032 | | 2015 | 983,666 | | 2014 | 944,018 | | 2013 | 908,877 | | 2012 | 877,184 | | 2011 | 849,272 | | 2010 | 820,407 | | 2009 | 795,222 | | 2008 | 780,441 | | 2007 | 770,703 | | 2006 | 768,361 | | 2005 | 757,515 | | 2004 | 744,471 | | 2003 | 729,106 | | 2002 | 711,340 | | 2001 | 691,224 | | 2000 | 669,086 | | 1999 | 645,362 | | 1998 | 620,547 | | 1997 | 595,482 | | 1996 | 571,167 | | 1995 | 548,277 | | 1994 | 529,369 | | 1993 | 513,678 | | 1992 | 498,178 | | 1991 | 482,982 | | 1990 | 468,063 | | 1989 | 453,507 | | 1988 | 439,468 | | 1987 | 425,989 | | 1986 | 413,100 | | 1985 | 400,765 | | 1984 | 389,070 | | 1983 | 378,139 | | 1982 | 368,210 | | 1981 | 360,113 | | 1980 | 353,876 | | 1979 | 348,827 | | 1978 | 345,286 | | 1977 | 343,371 | | 1976 | 342,335 | | 1975 | 341,322 |
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