Year | Value | 2014 | 2,705.6040126574 | 2013 | 3,292.7116714611 | 2012 | 3,292.1139314376 | 2011 | 3,233.3133730813 | 2010 | 3,165.0680957166 | 2009 | 3,058.5756257472 | 2008 | 3,091.9136661267 | 2007 | 2,988.7269788731 | 2006 | 2,971.4323413025 | 2005 | 2,860.9102364431 | 2004 | 2,772.150927175 | 2003 | 2,640.9092938341 | 2002 | 2,733.4567950508 | 2001 | 2,706.730326919 | 2000 | 2,641.9156688696 | 1999 | 2,577.5901491053 | 1998 | 2,645.6977055516 | 1997 | 2,676.8458692307 | 1996 | 2,650.8819955246 | 1995 | 2,630.445003516 | 1994 | 2,645.2771018565 | 1993 | 2,677.9110244142 | 1992 | 2,670.7617767546 | 1991 | 2,533.1483193048 | 1990 | 2,462.8645064026 | 1989 | 2,482.7639446396 | 1988 | 2,599.4680005127 | 1987 | 2,437.1673753475 | 1986 | 2,323.9066939173 | 1985 | 2,325.6690608324 | 1984 | 2,344.9213288745 | 1983 | 2,221.3747689525 | 1982 | 2,069.1709764284 | 1981 | 2,247.8604944001 | 1980 | 2,015.5888950769 | 1979 | 1,833.5840570421 | 1978 | 1,541.7145488274 | 1977 | 1,400.3329693346 | 1976 | 1,293.0749797731 | 1975 | 1,231.1417386268 | 1974 | 1,219.657054974 | 1973 | 1,164.5254122318 | 1972 | 1,112.7857524291 | 1971 | 1,054.4459037557 |
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