Year | Value | 2022 | 552,927 | 2021 | 535,022 | 2020 | 531,452 | 2019 | 532,460 | 2018 | 537,849 | 2017 | 547,613 | 2016 | 559,631 | 2015 | 570,316 | 2014 | 576,885 | 2013 | 577,336 | 2012 | 570,243 | 2011 | 556,437 | 2010 | 538,791 | 2009 | 519,954 | 2008 | 498,054 | 2007 | 478,315 | 2006 | 465,033 | 2005 | 453,590 | 2004 | 441,849 | 2003 | 429,018 | 2002 | 413,928 | 2001 | 391,275 | 2000 | 357,742 | 1999 | 315,969 | 1998 | 276,771 | 1997 | 253,715 | 1996 | 254,595 | 1995 | 282,173 | 1994 | 330,773 | 1993 | 383,925 | 1992 | 427,271 | 1991 | 452,867 | 1990 | 452,979 | 1989 | 433,751 | 1988 | 415,402 | 1987 | 382,120 | 1986 | 349,958 | 1985 | 332,540 | 1984 | 333,439 | 1983 | 352,395 | 1982 | 381,894 | 1981 | 404,982 | 1980 | 411,522 | 1979 | 402,448 | 1978 | 381,278 | 1977 | 351,501 | 1976 | 319,085 | 1975 | 290,215 | 1974 | 266,176 | 1973 | 245,318 | 1972 | 230,223 | 1971 | 221,652 | 1970 | 219,803 | 1969 | 224,270 | 1968 | 235,666 | 1967 | 251,200 | 1966 | 263,526 | 1965 | 267,981 | 1964 | 265,345 | 1963 | 255,604 | 1962 | 240,446 | 1961 | 225,754 | 1960 | 215,307 |
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