Year | Value | 2021 | 4,872.497391244 | 2020 | 3,677.1705760102 | 2019 | 3,915.9046732718 | 2018 | 3,513.7418275788 | 2017 | 3,483.2945365938 | 2016 | 2,818.6046433571 | 2015 | 2,534.2479088071 | 2014 | 2,501.942812382 | 2013 | 2,525.7198285013 | 2012 | 2,350.0184118847 | 2011 | 2,110.8214653094 | 2010 | 2,074.2088985907 | 2009 | 1,640.805 | 2008 | 1,672.356 | 2007 | 1,642.634 | 2006 | 1,864.498 | 2005 | 1,746.905 | 2004 | 1,649.787 | 2003 | 1,393.344 | 2002 | 1,339.807 | 2001 | 1,613.0010000954 | 2000 | 1,715.581 | 1999 | 1,559.0999856443 | 1998 | 1,506.1999872178 | 1997 | 1,587.2000118643 | 1996 | 1,543.3000074995 | 1995 | 1,573.9999926611 | 1994 | 1,497.5000121072 | 1993 | 1,264.4999935328 | 1992 | 1,277.7000075876 | 1991 | 1,215.6999909581 | 1990 | 1,262.4000077617 | 1989 | 1,283.500012651 | 1988 | 1,246.7999826966 | 1987 | 1,154.399992034 | 1986 | 1,014.9000111671 | 1985 | 1,033.6999912039 | 1984 | 936.8999975101 | 1983 | 818.1000029818 | 1982 | 821.4000046624 | 1981 | 795.999999039 | 1980 | 731.7999980972 | 1979 | 687.9999984431 | 1978 | 576.6000051277 | 1977 | 510.0000055583 | 1976 | 487.1000073778 | 1975 | 431.10000407 | 1974 | 373.7000040335 | 1973 | 292.2000006735 | 1972 | 239.4999996723 | 1971 | 244.2999995576 | 1970 | 235.1999989373 |
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