| Year | Value | | 2024 | 1,298,416 | | 2023 | 1,248,500 | | 2022 | 1,198,433 | | 2021 | 1,150,383 | | 2020 | 1,103,981 | | 2019 | 1,055,494 | | 2018 | 1,004,936 | | 2017 | 954,097 | | 2016 | 903,939 | | 2015 | 855,819 | | 2014 | 809,066 | | 2013 | 765,600 | | 2012 | 726,302 | | 2011 | 689,284 | | 2010 | 654,941 | | 2009 | 622,716 | | 2008 | 592,230 | | 2007 | 563,485 | | 2006 | 535,911 | | 2005 | 509,078 | | 2004 | 484,904 | | 2003 | 463,348 | | 2002 | 442,169 | | 2001 | 421,681 | | 2000 | 402,278 | | 1999 | 383,910 | | 1998 | 366,551 | | 1997 | 350,145 | | 1996 | 334,492 | | 1995 | 319,076 | | 1994 | 303,923 | | 1993 | 289,581 | | 1992 | 276,178 | | 1991 | 263,696 | | 1990 | 252,053 | | 1989 | 243,471 | | 1988 | 239,244 | | 1987 | 238,378 | | 1986 | 240,334 | | 1985 | 243,264 | | 1984 | 244,219 | | 1983 | 242,469 | | 1982 | 238,638 | | 1981 | 233,713 | | 1980 | 229,408 | | 1979 | 225,786 | | 1978 | 222,533 | | 1977 | 219,476 | | 1976 | 216,102 | | 1975 | 212,239 |
|