Year | Value | 2022 | 638,962 | 2021 | 634,932 | 2020 | 630,349 | 2019 | 621,281 | 2018 | 609,967 | 2017 | 598,870 | 2016 | 587,791 | 2015 | 577,396 | 2014 | 567,929 | 2013 | 559,947 | 2012 | 554,798 | 2011 | 550,130 | 2010 | 545,782 | 2009 | 544,182 | 2008 | 546,584 | 2007 | 554,745 | 2006 | 570,457 | 2005 | 572,749 | 2004 | 558,031 | 2003 | 539,638 | 2002 | 509,680 | 2001 | 467,807 | 2000 | 440,122 | 1999 | 427,751 | 1998 | 413,116 | 1997 | 401,461 | 1996 | 393,215 | 1995 | 385,315 | 1994 | 377,007 | 1993 | 369,474 | 1992 | 364,799 | 1991 | 362,441 | 1990 | 360,857 | 1989 | 359,663 | 1988 | 357,755 | 1987 | 354,227 | 1986 | 349,529 | 1985 | 344,716 | 1984 | 341,079 | 1983 | 340,748 | 1982 | 341,713 | 1981 | 342,856 | 1980 | 344,552 | 1979 | 341,269 | 1978 | 330,817 | 1977 | 320,570 | 1976 | 312,141 | 1975 | 301,786 | 1974 | 297,166 | 1973 | 300,493 | 1972 | 303,267 | 1971 | 302,729 | 1970 | 300,821 | 1969 | 298,904 | 1968 | 296,071 | 1967 | 293,461 | 1966 | 291,737 | 1965 | 290,048 | 1964 | 286,831 | 1963 | 282,816 | 1962 | 278,846 | 1961 | 274,727 | 1960 | 269,513 |
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