Year | Value | 2014 | 1,908.220144482 | 2013 | 1,859.3373948692 | 2012 | 1,779.5669053513 | 2011 | 1,726.8017872842 | 2010 | 1,615.3250509216 | 2009 | 1,489.1741458718 | 2008 | 1,456.6020164785 | 2007 | 1,416.8316747747 | 2006 | 1,321.5823754875 | 2005 | 1,225.463141594 | 2004 | 1,158.5476510679 | 2003 | 1,084.5493272314 | 2002 | 1,013.0926927852 | 2001 | 970.24591918746 | 2000 | 950.42492970824 | 1999 | 913.48840135561 | 1998 | 895.36777707894 | 1997 | 890.72436600103 | 1996 | 875.44849206083 | 1995 | 856.32930795829 | 1994 | 841.42228806166 | 1993 | 840.51027543762 | 1992 | 845.36385514524 | 1991 | 854.94423438868 | 1990 | 851.0302348512 | 1989 | 488.84905930417 | 1988 | 470.22620487095 | 1987 | 446.56668644316 | 1986 | 425.82655813621 | 1985 | 403.94427261477 | 1984 | 384.37339214334 | 1983 | 362.5278980402 | 1982 | 347.57604899723 | 1981 | 332.51849403163 | 1980 | 324.42096092127 | 1979 | 308.73404958385 | 1978 | 289.2549810376 | 1977 | 268.99976921284 | 1976 | 253.56085713176 | 1975 | 240.06801512972 | 1974 | 221.74848788769 | 1973 | 214.02174181532 | 1972 | 200.28045439287 | 1971 | 187.62002002968 |
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