Year | Value | 2014 | 11,747.901803069 | 2013 | 9,259.1314485685 | 2012 | 9,852.575136808 | 2011 | 8,392.8846297843 | 2010 | 11,060.007771173 | 2009 | 9,471.5720702346 | 2008 | 9,543.8844683217 | 2007 | 6,978.6303883171 | 2006 | 5,378.3199475268 | 2005 | 4,186.1736965598 | 2004 | 3,208.5713439056 | 2003 | 2,349.0976400012 | 2002 | 2,678.2481374834 | 2001 | 3,768.2546186979 | 2000 | 3,647.5373137412 | 1999 | 3,077.534012223 | 1998 | 2,925.8750983414 | 1997 | 2,733.4578684457 | 1996 | 2,230.3355189956 | 1995 | 2,628.1097787449 | 1994 | 1,983.7073833742 | 1993 | 2,137.5844688868 | 1992 | 2,249.8552628995 | 1991 | 2,034.6551298988 | 1990 | 1,768.4709865525 | 1989 | 1,572.7989132651 | 1988 | 2,449.0396924081 | 1987 | 1,938.1769104907 | 1986 | 2,588.5181414846 | 1985 | 2,661.8516524382 | 1984 | 2,496.5962501522 | 1983 | 2,905.0170040714 | 1982 | 3,118.210234217 | 1981 | 2,973.0757863193 | 1980 | 2,478.0629774719 | 1979 | 1,990.2161671094 | 1978 | 2,070.7010440122 | 1977 | 2,006.1507548054 | 1976 | 1,718.2934996904 | 1975 | 1,517.3726339022 | 1974 | 1,266.5484215736 | 1973 | 1,059.7877894198 | 1972 | 934.46192891273 | 1971 | 871.47486487252 | 1970 | 835.24203188877 |
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