Year	2010 U.S. Dollars
1960-01-01	716.081771159348
1961-01-01	713.377382784594
1962-01-01	712.004056481812
1963-01-01	688.181696449386
1964-01-01	697.791665601797
1965-01-01	677.291224191965
1966-01-01	673.827468059623
1967-01-01	692.941343363655
1968-01-01	721.151433268645
1969-01-01	728.421870931534
1970-01-01	746.521973479786
1971-01-01	755.012720330563
1972-01-01	725.148376944682
1973-01-01	686.782162654076
1974-01-01	681.190405580626
1975-01-01	670.571833889645
1976-01-01	631.812662350180
1977-01-01	628.577778512159
1978-01-01	594.595029190067
1979-01-01	634.723337793161
1980-01-01	621.715476634948
1981-01-01	545.472013503856
1982-01-01	520.355914513284
1983-01-01	510.125926689984
1984-01-01	504.150290815363
1985-01-01	495.655446418753
1986-01-01	491.275875272196
1987-01-01	483.262597977384
1988-01-01	485.810598619473
1989-01-01	491.435526108866
1990-01-01	492.398908832677
1991-01-01	448.035509251794
1992-01-01	440.137210467183
1993-01-01	436.101667406309
1994-01-01	422.746160759111
1995-01-01	416.938320785458
1996-01-01	412.808337480976
1997-01-01	414.774253712874
1998-01-01	417.666676021240
1999-01-01	423.576141162102
2000-01-01	430.108996269166
2001-01-01	442.135823538468
2002-01-01	374.489090807365
2003-01-01	398.901978555256
2004-01-01	407.517462052747
2005-01-01	413.867494917738
2006-01-01	422.141167051048
2007-01-01	435.717245157376
2008-01-01	453.636564218075
2009-01-01	423.305740799147
2010-01-01	412.730934137725
2011-01-01	407.327281863527
2012-01-01	408.342125554289
2013-01-01	406.374993170931
2014-01-01	408.661033133980
2015-01-01	410.194159196256
2016-01-01	416.002717256506
2017-01-01	421.891245665385