Year	Current U.S. Dollars
1986-01-01	367.624383773276
1987-01-01	379.363468588284
1988-01-01	429.225276743103
1989-01-01	421.447936981274
1990-01-01	441.412793264943
1991-01-01	472.973793640238
1992-01-01	485.974849103036
1993-01-01	457.762848750864
1994-01-01	448.447564230140
1995-01-01	469.276101422230
1996-01-01	475.746391897197
1997-01-01	453.801150958948
1998-01-01	421.998203404557
1999-01-01	399.973964366999
2000-01-01	340.051691750487
2001-01-01	315.839800323726
2002-01-01	322.811170974089
2003-01-01	370.193178116151
2004-01-01	386.328828253397
2005-01-01	303.424497985820
2006-01-01	442.837405330867
2007-01-01	578.034963730061
2008-01-01	679.038416549273
2009-01-01	615.084215997970
2010-01-01	647.803202894337
2011-01-01	590.033855754206
2012-01-01	665.230652982924
2013-01-01	716.244195077918
2014-01-01	742.455716567797
2015-01-01	732.561347319453
2016-01-01	748.301305931726
2017-01-01	825.344929766329