| Year | Value | | 2024 | 660,906 | | 2023 | 643,906 | | 2022 | 627,556 | | 2021 | 612,087 | | 2020 | 597,239 | | 2019 | 584,153 | | 2018 | 570,237 | | 2017 | 554,184 | | 2016 | 538,382 | | 2015 | 522,508 | | 2014 | 504,884 | | 2013 | 488,593 | | 2012 | 475,203 | | 2011 | 461,728 | | 2010 | 448,178 | | 2009 | 434,900 | | 2008 | 421,578 | | 2007 | 408,339 | | 2006 | 396,257 | | 2005 | 383,099 | | 2004 | 368,415 | | 2003 | 353,955 | | 2002 | 339,445 | | 2001 | 325,356 | | 2000 | 312,209 | | 1999 | 300,539 | | 1998 | 290,449 | | 1997 | 281,542 | | 1996 | 273,990 | | 1995 | 268,944 | | 1994 | 267,521 | | 1993 | 256,686 | | 1992 | 241,732 | | 1991 | 234,333 | | 1990 | 227,322 | | 1989 | 220,578 | | 1988 | 214,022 | | 1987 | 207,573 | | 1986 | 201,066 | | 1985 | 194,247 | | 1984 | 187,172 | | 1983 | 180,154 | | 1982 | 173,262 | | 1981 | 166,552 | | 1980 | 160,315 | | 1979 | 154,636 | | 1978 | 149,354 | | 1977 | 144,479 | | 1976 | 140,024 | | 1975 | 136,025 |
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