Year | Value | 2021 | 715.59 | 2020 | 816.628 | 2019 | 889.334 | 2018 | 994.542 | 2017 | 912.898 | 2016 | 783.925 | 2015 | 758.633996 | 2014 | 651.238996 | 2013 | 801.730584 | 2012 | 810.9094560052 | 2011 | 883.418 | 2010 | 856.431 | 2009 | 984.612 | 2008 | 901.863 | 2007 | 1,132.878 | 2006 | 1,124.374 | 2005 | 1,213.475 | 2004 | 1,354.537 | 2003 | 1,394.397 | 2002 | 1,322.718 | 2001 | 857.561 | 2000 | 885.704 | 1999 | 1,034.3000488281 | 1998 | 1,117.3000488281 | 1997 | 1,135.8000488281 | 1996 | 1,112.9000244141 | 1995 | 1,071.3000488281 | 1994 | 956.5 | 1993 | 861.799987793 | 1992 | 844.299987793 | 1991 | 863.299987793 | 1990 | 831.5 | 1989 | 816.799987793 | 1988 | 754.4000244141 | 1987 | 642.700012207 | 1986 | 571 | 1985 | 592.0999755859 | 1984 | 529.5999755859 | 1983 | 354.6000061035 | 1982 | 297.1000061035 | 1981 | 298.200012207 | 1980 | 295 | 1979 | 286.3999938965 | 1978 | 201 | 1977 | 174.1000061035 | 1976 | 126.9000015259 | 1975 | 131 | 1974 | 143.6000061035 | 1973 | 129.5 | 1972 | 105 | 1971 | 114.9000015259 | 1970 | 98.4000015259 |
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