Year | Value | 2021 | 657,016 | 2020 | 659,764 | 2019 | 1,018,436 | 2018 | 999,594 | 2017 | 1,035,522 | 2016 | 984,320 | 2015 | 956,015 | 2014 | 927,666 | 2013 | 915,542.658 | 2012 | 874,677 | 2011 | 812,928 | 2010 | 934,487.43946256 | 2009 | 641,913 | 2008 | 655,495 | 2007 | 656,917 | 2006 | 670,252 | 2005 | 651,858 | 2004 | 638,430 | 2003 | 639,866 | 2002 | 647,953 | 2001 | 640,328 | 2000 | 645,087 | 1999 | 661,800 | 1998 | 636,500 | 1997 | 573,300 | 1996 | 564,000 | 1995 | 535,900 | 1994 | 489,300 | 1993 | 474,400 | 1992 | 473,000 | 1991 | 495,800 | 1990 | 476,000 | 1989 | 468,300 | 1988 | 465,400 | 1987 | 441,500 | 1986 | 433,300 | 1985 | 417,800 | 1984 | 416,100 | 1983 | 414,300 | 1982 | 417,500 | 1981 | 416,600 | 1980 | 396,500 | 1979 | 388,500 | 1978 | 369,600 | 1977 | 345,900 | 1976 | 321,200 | 1975 | 312,700 | 1974 | 320,700 | 1973 | 311,800 | 1972 | 298,700 | 1971 | 395,100 | 1970 | 277,300 |
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