Year | Value | 2022 | 651,441 | 2021 | 651,251 | 2020 | 652,129 | 2019 | 651,768 | 2018 | 648,854 | 2017 | 644,013 | 2016 | 635,969 | 2015 | 623,162 | 2014 | 606,809 | 2013 | 588,279 | 2012 | 568,264 | 2011 | 547,193 | 2010 | 526,151 | 2009 | 507,567 | 2008 | 492,919 | 2007 | 483,125 | 2006 | 477,851 | 2005 | 475,376 | 2004 | 471,680 | 2003 | 467,200 | 2002 | 462,676 | 2001 | 456,570 | 2000 | 452,279 | 1999 | 459,761 | 1998 | 476,070 | 1997 | 493,970 | 1996 | 507,938 | 1995 | 514,012 | 1994 | 517,840 | 1993 | 519,555 | 1992 | 517,153 | 1991 | 509,426 | 1990 | 496,394 | 1989 | 477,862 | 1988 | 456,748 | 1987 | 435,979 | 1986 | 416,887 | 1985 | 402,041 | 1984 | 389,426 | 1983 | 376,510 | 1982 | 364,333 | 1981 | 352,592 | 1980 | 341,115 | 1979 | 329,964 | 1978 | 319,259 | 1977 | 309,423 | 1976 | 300,746 | 1975 | 293,078 | 1974 | 286,239 | 1973 | 280,057 | 1972 | 274,302 | 1971 | 268,804 | 1970 | 263,654 | 1969 | 259,094 | 1968 | 255,184 | 1967 | 251,686 | 1966 | 248,107 | 1965 | 243,874 | 1964 | 238,490 | 1963 | 231,692 | 1962 | 223,498 | 1961 | 214,125 | 1960 | 203,898 |
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