Year | Value | 2022 | 509,120 | 2021 | 519,777 | 2020 | 518,189 | 2019 | 516,495 | 2018 | 511,994 | 2017 | 499,466 | 2016 | 483,518 | 2015 | 459,603 | 2014 | 429,535 | 2013 | 405,724 | 2012 | 391,259 | 2011 | 383,059 | 2010 | 384,937 | 2009 | 396,004 | 2008 | 411,614 | 2007 | 434,087 | 2006 | 455,048 | 2005 | 467,886 | 2004 | 473,023 | 2003 | 472,702 | 2002 | 474,059 | 2001 | 480,441 | 2000 | 485,963 | 1999 | 487,532 | 1998 | 489,771 | 1997 | 488,581 | 1996 | 484,925 | 1995 | 480,821 | 1994 | 475,157 | 1993 | 466,700 | 1992 | 453,965 | 1991 | 443,492 | 1990 | 427,303 | 1989 | 401,865 | 1988 | 361,657 | 1987 | 309,614 | 1986 | 269,719 | 1985 | 250,305 | 1984 | 248,313 | 1983 | 276,136 | 1982 | 327,698 | 1981 | 370,513 | 1980 | 396,925 | 1979 | 410,224 | 1978 | 411,572 | 1977 | 405,055 | 1976 | 395,538 | 1975 | 385,086 | 1974 | 375,391 | 1973 | 368,454 | 1972 | 361,462 | 1971 | 352,688 | 1970 | 343,966 | 1969 | 332,107 | 1968 | 316,885 | 1967 | 299,858 | 1966 | 281,638 | 1965 | 265,743 | 1964 | 252,056 | 1963 | 239,839 | 1962 | 229,590 | 1961 | 221,779 | 1960 | 216,239 |
|