Year	Current U.S. Dollars
1960-01-01	131.993036021550
1961-01-01	133.847581549068
1962-01-01	138.119849134424
1963-01-01	138.407165710075
1964-01-01	142.659339874214
1965-01-01	144.484654967511
1966-01-01	152.107820130995
1967-01-01	157.476387051335
1968-01-01	165.478455065697
1969-01-01	165.011573016693
1970-01-01	169.070560105029
1971-01-01	177.498409996047
1972-01-01	193.128554834597
1973-01-01	231.436185504653
1974-01-01	261.035341386060
1975-01-01	302.149467628563
1976-01-01	280.679038857192
1977-01-01	294.933988153902
1978-01-01	324.384495709068
1979-01-01	408.937427733313
1980-01-01	463.731466024124
1981-01-01	400.705603052702
1982-01-01	381.865801322053
1983-01-01	369.472871424721
1984-01-01	300.534090569938
1985-01-01	283.985803389459
1986-01-01	314.746051106988
1987-01-01	240.955452416246
1988-01-01	223.011276381555
1989-01-01	221.682033013421
1990-01-01	265.676118926057
1991-01-01	222.153744314960
1992-01-01	245.864316227243
1993-01-01	265.934507379578
1994-01-01	227.836905482236
1995-01-01	234.494058207896
1996-01-01	287.356559593887
1997-01-01	247.129410232435
1998-01-01	252.465205803687
1999-01-01	243.252751462484
2000-01-01	245.939065850803
2001-01-01	278.555703176672
2002-01-01	262.285948115462
2003-01-01	316.799896490486
2004-01-01	245.123587583262
2005-01-01	274.819702299258
2006-01-01	292.150744287583
2007-01-01	377.848292823497
2008-01-01	470.733254004499
2009-01-01	415.689322591492
2010-01-01	412.730934137725
2011-01-01	454.963463976433
2012-01-01	443.906100111531
2013-01-01	461.723072174234
2014-01-01	452.463192574895
2015-01-01	402.088311769817
2016-01-01	401.742265413689
2017-01-01	449.722381894452