Year | Value | 2022 | 575,528 | 2021 | 568,821 | 2020 | 559,913 | 2019 | 551,497 | 2018 | 545,402 | 2017 | 542,297 | 2016 | 542,129 | 2015 | 543,070 | 2014 | 541,467 | 2013 | 536,990 | 2012 | 532,140 | 2011 | 525,886 | 2010 | 517,418 | 2009 | 509,066 | 2008 | 501,341 | 2007 | 493,821 | 2006 | 489,198 | 2005 | 488,380 | 2004 | 488,420 | 2003 | 488,660 | 2002 | 488,930 | 2001 | 487,202 | 2000 | 484,577 | 1999 | 486,030 | 1998 | 493,747 | 1997 | 509,210 | 1996 | 533,311 | 1995 | 563,213 | 1994 | 595,220 | 1993 | 620,999 | 1992 | 636,226 | 1991 | 643,140 | 1990 | 644,920 | 1989 | 645,179 | 1988 | 647,490 | 1987 | 650,348 | 1986 | 651,612 | 1985 | 649,741 | 1984 | 643,904 | 1983 | 636,407 | 1982 | 628,598 | 1981 | 620,133 | 1980 | 610,846 | 1979 | 601,200 | 1978 | 592,685 | 1977 | 587,281 | 1976 | 582,949 | 1975 | 578,212 | 1974 | 576,131 | 1973 | 579,758 | 1972 | 589,513 | 1971 | 606,174 | 1970 | 607,432 | 1969 | 591,001 | 1968 | 572,018 | 1967 | 541,860 | 1966 | 498,439 | 1965 | 469,182 | 1964 | 456,044 | 1963 | 440,387 | 1962 | 427,684 | 1961 | 418,699 | 1960 | 411,157 |
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