Year | Value | 2022 | 586,246 | 2021 | 574,594 | 2020 | 563,067 | 2019 | 551,666 | 2018 | 540,363 | 2017 | 529,143 | 2016 | 520,089 | 2015 | 514,833 | 2014 | 511,355 | 2013 | 509,092 | 2012 | 507,857 | 2011 | 505,360 | 2010 | 502,222 | 2009 | 502,946 | 2008 | 510,057 | 2007 | 525,678 | 2006 | 550,847 | 2005 | 582,435 | 2004 | 616,265 | 2003 | 644,223 | 2002 | 661,330 | 2001 | 669,155 | 2000 | 671,282 | 1999 | 671,369 | 1998 | 672,885 | 1997 | 675,177 | 1996 | 675,939 | 1995 | 673,087 | 1994 | 665,563 | 1993 | 655,188 | 1992 | 644,046 | 1991 | 632,765 | 1990 | 621,784 | 1989 | 611,765 | 1988 | 603,317 | 1987 | 597,451 | 1986 | 592,515 | 1985 | 588,753 | 1984 | 588,593 | 1983 | 593,397 | 1982 | 604,258 | 1981 | 621,950 | 1980 | 623,230 | 1979 | 605,835 | 1978 | 585,553 | 1977 | 553,837 | 1976 | 510,282 | 1975 | 481,147 | 1974 | 467,546 | 1973 | 452,095 | 1972 | 439,719 | 1971 | 430,269 | 1970 | 420,632 | 1969 | 410,702 | 1968 | 402,301 | 1967 | 397,835 | 1966 | 395,825 | 1965 | 394,184 | 1964 | 392,704 | 1963 | 390,653 | 1962 | 387,079 | 1961 | 381,992 | 1960 | 377,228 |
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