Year | Value | 2014 | 1,592.2198941413 | 2013 | 1,595.1741895217 | 2012 | 1,596.4642670916 | 2011 | 1,597.5438759263 | 2010 | 1,494.9156764295 | 2009 | 1,458.7537764442 | 2008 | 1,396.7476068249 | 2007 | 1,355.4936461882 | 2006 | 1,271.1821839281 | 2005 | 1,205.281395672 | 2004 | 1,138.8317344605 | 2003 | 1,099.2805185639 | 2002 | 1,036.7670761199 | 2001 | 990.62153687895 | 2000 | 942.19851822659 | 1999 | 909.62554768677 | 1998 | 856.26611607797 | 1997 | 815.73307877418 | 1996 | 779.37692399146 | 1995 | 724.0492248746 | 1994 | 707.48547606216 | 1993 | 696.92842550446 | 1992 | 682.87357735505 | 1991 | 680.26442530478 | 1990 | 665.02221547181 | 1989 | 645.82543834225 | 1988 | 624.58509401908 | 1987 | 610.41246907557 | 1986 | 580.79531368752 | 1985 | 489.38917647495 | 1984 | 514.08850889125 | 1983 | 496.81476607988 | 1982 | 452.62773715184 | 1981 | 413.38923200895 | 1980 | 378.16105290424 | 1979 | 344.17438469065 | 1978 | 320.10766816248 | 1977 | 306.525639571 | 1976 | 272.36465943068 | 1975 | 238.81007182252 | 1974 | 216.47558761219 | 1973 | 196.17046798806 | 1972 | 199.28012531967 | 1971 | 202.94764009947 |
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