Year | Value | 2014 | 2,584.4117872644 | 2013 | 2,494.5339182302 | 2012 | 2,604.2431374758 | 2011 | 2,639.0334337791 | 2010 | 2,550.8632914192 | 2009 | 2,390.5747429715 | 2008 | 2,605.8197354887 | 2007 | 2,529.906887819 | 2006 | 2,446.2860766565 | 2005 | 2,365.4195641258 | 2004 | 2,295.5705054898 | 2003 | 2,237.9378155313 | 2002 | 2,079.796061719 | 2001 | 2,066.783932926 | 2000 | 1,987.6601899098 | 1999 | 1,935.5608124585 | 1998 | 2,107.4454631342 | 1997 | 2,250.9998014541 | 1996 | 2,430.3015287499 | 1995 | 2,328.7943583814 | 1994 | 2,234.7350845093 | 1993 | 2,272.1242281429 | 1992 | 2,319.5727490278 | 1991 | 2,521.0038365465 | 1990 | 2,924.5962657695 | 1989 | 3,412.0045465186 | 1988 | 3,392.6249764612 | 1987 | 3,275.6804853105 | 1986 | 3,318.9791880584 | 1985 | 3,132.978627237 | 1984 | 3,079.9609214389 | 1983 | 2,974.8926419024 | 1982 | 2,927.2449793758 | 1981 | 2,954.448762519 | 1980 | 2,876.6690133444 | 1979 | 2,694.1007369326 | 1978 | 2,664.7425429119 | 1977 | 2,550.1358331936 | 1976 | 2,418.7493161771 | 1975 | 2,214.6108524808 | 1974 | 2,018.9801634652 | 1973 | 1,906.9211128736 | 1972 | 1,786.7207294506 | 1971 | 1,632.0841898375 |
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