Year	2010 U.S. Dollars
1960-01-01	238.854562360996
1961-01-01	245.198582661663
1962-01-01	256.777174402718
1963-01-01	250.117852037582
1964-01-01	252.261831813637
1965-01-01	257.915077535290
1966-01-01	255.281531248820
1967-01-01	273.300218245601
1968-01-01	276.974204233536
1969-01-01	277.774091102005
1970-01-01	273.331515512249
1971-01-01	272.410460368818
1972-01-01	273.836954643180
1973-01-01	270.182895737443
1974-01-01	287.264561673976
1975-01-01	290.373108648389
1976-01-01	309.153850689155
1977-01-01	304.242226817525
1978-01-01	311.834178785847
1979-01-01	316.437746591525
1980-01-01	311.891569083801
1981-01-01	317.607545255431
1982-01-01	339.563291884780
1983-01-01	332.260179910774
1984-01-01	318.102431922458
1985-01-01	336.411586413563
1986-01-01	353.888019006108
1987-01-01	343.970454997046
1988-01-01	354.488976474489
1989-01-01	352.677859553805
1990-01-01	341.352617189917
1991-01-01	362.478919951271
1992-01-01	353.668786014067
1993-01-01	356.128863354102
1994-01-01	351.104458678869
1995-01-01	361.121421967347
1996-01-01	389.965445880456
1997-01-01	403.216943616745
1998-01-01	420.723454429533
1999-01-01	439.299726397477
2000-01-01	434.763330444212
2001-01-01	450.452280722016
2002-01-01	456.734134910790
2003-01-01	478.304352301957
2004-01-01	485.307404342803
2005-01-01	511.967590461138
2006-01-01	527.962349488741
2007-01-01	541.268695046728
2008-01-01	563.447065061273
2009-01-01	562.841935400742
2010-01-01	575.446452687734
2011-01-01	595.393248086405
2012-01-01	615.097084338391
2013-01-01	631.612184358054
2014-01-01	639.709550663991
2015-01-01	645.369860580495
2016-01-01	663.961762877322
2017-01-01	688.533891370075