Year	Current U.S. Dollars
1967-01-01	25203524.0325638
1968-01-01	28084252.7582748
1969-01-01	28606411.3980410
1971-01-01	50056882.8213879
1972-01-01	40606712.0506390
1973-01-01	55272108.8435374
1974-01-01	84539332.2825620
1975-01-01	74617096.4785967
1976-01-01	83099107.9066357
1977-01-01	93147039.2548237
1978-01-01	111022089.9622300
1979-01-01	151270207.8521940
1980-01-01	168715353.0971320
1981-01-01	187313261.3192370
1982-01-01	188446092.0605500
1983-01-01	180219397.5274250
1984-01-01	252806783.3869830
1985-01-01	232306861.1561320
1986-01-01	210737869.6525980
1987-01-01	238606299.6056510
1988-01-01	310684273.7094840
1989-01-01	332286760.8581890
1990-01-01	302515026.8902250
1991-01-01	320355090.6144100
1992-01-01	378778047.1978420
1993-01-01	410923236.1891020
1994-01-01	464756638.5124870
1995-01-01	519334096.7145250
1996-01-01	565163750.5607900
1997-01-01	567919502.8114830
1998-01-01	471177008.0571480
1999-01-01	482214092.3089640
2000-01-01	435103853.4850360
2001-01-01	400463452.0651760
2002-01-01	341661643.5514460
2003-01-01	332738245.9132150
2004-01-01	375111894.9323290
2005-01-01	413909879.2812650
2006-01-01	456705433.9969780
2007-01-01	516074228.9597490
2008-01-01	608293860.2718160
2009-01-01	597765363.1284920
2010-01-01	681151189.9565110
2011-01-01	932725578.7618450
2012-01-01	1063879451.2332900
2013-01-01	1129787201.7570100
2014-01-01	1172268295.9261700
2015-01-01	1154650066.3019500
2016-01-01	1232699140.3716400
2017-01-01	1303453616.1197400