Year	2010 U.S. Dollars
1960-01-01	696.276927518842
1961-01-01	692.452985062186
1962-01-01	715.343302231634
1963-01-01	690.119082583445
1964-01-01	659.744314823992
1965-01-01	651.095409215323
1966-01-01	627.461752031850
1967-01-01	620.744771529967
1968-01-01	606.510124923166
1969-01-01	635.706782347227
1970-01-01	634.169056579847
1971-01-01	606.182670221969
1972-01-01	598.845713010120
1973-01-01	535.665476109108
1974-01-01	549.328077539687
1975-01-01	585.869437851465
1976-01-01	591.145080233515
1977-01-01	592.739631973372
1978-01-01	578.844903410506
1979-01-01	445.983483462158
1980-01-01	410.530859733335
1981-01-01	405.983295655422
1982-01-01	418.162940355075
1983-01-01	472.316578782232
1984-01-01	469.836916349710
1985-01-01	556.775298410439
1986-01-01	518.620832788541
1987-01-01	490.779323348249
1988-01-01	548.875441672802
1989-01-01	557.347596745928
1990-01-01	517.134639876823
1991-01-01	543.638835795692
1992-01-01	568.734343155584
1993-01-01	464.285496348839
1994-01-01	494.999868096875
1995-01-01	484.758087671732
1996-01-01	479.042125106108
1997-01-01	489.095261494704
1998-01-01	505.162085342138
1999-01-01	484.082558710106
2000-01-01	462.528599777400
2001-01-01	497.346803391641
2002-01-01	519.276650395810
2003-01-01	573.334374350299
2004-01-01	737.987527422334
2005-01-01	835.195541663453
2006-01-01	812.008600306535
2007-01-01	811.016281875588
2008-01-01	808.889003870998
2009-01-01	815.968047215377
2010-01-01	896.569734113861
2011-01-01	867.999063167632
2012-01-01	914.118651095514
2013-01-01	934.702545964812
2014-01-01	967.102777311794
2015-01-01	962.655922565098
2016-01-01	874.767072140967
2017-01-01	823.434891687717