Year	2010 U.S. Dollars
1960-01-01	349.049554539896
1961-01-01	387.356905129676
1962-01-01	398.178626780120
1963-01-01	413.215904084631
1964-01-01	463.636220646084
1965-01-01	520.726760167987
1966-01-01	548.717918854480
1967-01-01	553.498519655333
1968-01-01	554.315971978211
1969-01-01	587.445116387211
1970-01-01	579.323494074324
1971-01-01	560.732444829577
1972-01-01	586.863287741875
1973-01-01	594.631144041524
1974-01-01	609.276048360275
1975-01-01	610.208834231553
1976-01-01	584.591766389459
1977-01-01	611.840091399849
1978-01-01	664.151340743301
1979-01-01	614.011077359612
1980-01-01	683.348900508410
1981-01-01	639.266976687249
1982-01-01	594.581679201456
1983-01-01	541.730963266126
1984-01-01	551.068271419000
1985-01-01	561.520547229677
1986-01-01	551.602672756874
1987-01-01	536.852635801284
1988-01-01	555.274641141529
1989-01-01	561.447726461232
1990-01-01	545.206096403149
1991-01-01	528.095747707227
1992-01-01	495.453390864247
1993-01-01	411.181440145464
1994-01-01	461.577031662488
1995-01-01	484.935502925586
1996-01-01	512.879838620492
1997-01-01	568.984188324217
1998-01-01	538.734044476775
1999-01-01	535.322454273127
2000-01-01	515.669772437193
2001-01-01	493.248301180906
2002-01-01	475.699196736596
2003-01-01	486.309191471064
2004-01-01	483.765465442695
2005-01-01	476.671547533371
2006-01-01	482.859636282208
2007-01-01	480.775907763523
2008-01-01	478.361775517670
2009-01-01	481.960278006291
2010-01-01	487.923891266382
2011-01-01	498.242897960250
2012-01-01	508.540041972532
2013-01-01	514.944965988397
2014-01-01	531.156102203549
2015-01-01	545.577884885336
2016-01-01	560.697654931133
2017-01-01	577.382256121762