Year | Value | 2014 | 8,930.5226861489 | 2013 | 8,989.3691186884 | 2012 | 8,989.5993799861 | 2011 | 9,049.2436755603 | 2010 | 9,157.4903766373 | 2009 | 8,783.8741527435 | 2008 | 9,183.8489153844 | 2007 | 9,225.0252151838 | 2006 | 9,135.0426832312 | 2005 | 9,120.2132430186 | 2004 | 8,954.2741904595 | 2003 | 8,820.0937788815 | 2002 | 8,736.0180349962 | 2001 | 8,584.5229267799 | 2000 | 8,663.2217610075 | 1999 | 8,387.8726061583 | 1998 | 8,242.6241639248 | 1997 | 8,094.4095124254 | 1996 | 7,989.9954089402 | 1995 | 7,816.6732432301 | 1994 | 7,637.665540921 | 1993 | 7,470.6629724732 | 1992 | 7,368.2895077949 | 1991 | 7,366.7275369399 | 1990 | 7,202.1235822991 | 1989 | 7,103.0353723254 | 1988 | 6,927.9837279405 | 1987 | 6,686.7970205709 | 1986 | 6,416.8392168547 | 1985 | 6,317.7243015214 | 1984 | 6,141.5404988544 | 1983 | 5,836.9016408394 | 1982 | 5,665.2505668989 | 1981 | 5,765.2363048028 | 1980 | 5,701.3014016793 | 1979 | 5,631.7514595537 | 1978 | 5,460.6390602559 | 1977 | 5,261.3096141942 | 1976 | 5,074.8184383494 | 1975 | 4,780.6699327446 | 1974 | 4,755.3002861636 | 1973 | 4,733.973940255 | 1972 | 4,435.9828763229 | 1971 | 4,140.3309150977 | 1970 | 4,405.4623617954 | 1969 | 4,063.4352445753 | 1968 | 3,745.9267788745 | 1967 | 3,463.3431947879 | 1966 | 3,273.4943674903 | 1965 | 3,067.7858340012 | 1964 | 2,919.0041155508 | 1963 | 2,724.1523434812 | 1962 | 2,550.2774648799 | 1961 | 2,391.6927344262 | 1960 | 2,271.0775896569 |
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