Year | Value | 2021 | 65,329.564479953 | 2020 | 55,974.689204367 | 2019 | 73,216.730977128 | 2018 | 76,282.136440146 | 2017 | 72,869.462668904 | 2016 | 68,376.173972216 | 2015 | 66,620.265581943 | 2014 | 64,344.042567044 | 2013 | 60,230.744384054 | 2012 | 61,896.595543863 | 2011 | 71,129.559133152 | 2010 | 73,279.540525627 | 2009 | 67,952.876 | 2008 | 53,813.636 | 2007 | 56,456.284 | 2006 | 49,776.649 | 2005 | 48,131.62 | 2004 | 46,352.984 | 2003 | 40,567.062 | 2002 | 40,720.428 | 2001 | 36,488.609 | 2000 | 38,573.525 | 1999 | 36,237.699522451 | 1998 | 32,666.400097683 | 1997 | 31,943.400323548 | 1996 | 25,932.199586392 | 1995 | 23,599.199742198 | 1994 | 21,147.799588561 | 1993 | 18,872.200181126 | 1992 | 16,374.700091124 | 1991 | 14,609.399816513 | 1990 | 13,594.399767734 | 1989 | 13,090.60021992 | 1988 | 11,930.500243857 | 1987 | 10,622.099816851 | 1986 | 9,023.0000824036 | 1985 | 7,906.0998601021 | 1984 | 7,531.5001005679 | 1983 | 6,584.7000063211 | 1982 | 5,812.0998721496 | 1981 | 5,348.3000330851 | 1980 | 4,709.5999347718 | 1979 | 4,124.3000365272 | 1978 | 3,379.0999756828 | 1977 | 2,708.9999892786 | 1976 | 2,437.5000825226 | 1975 | 2,060.5000318587 | 1974 | 1,698.100014806 |
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