Year	Current U.S. Dollars
2000-01-01	635.605513129978
2001-01-01	568.553674291072
2002-01-01	539.283187277208
2003-01-01	597.305693237339
2004-01-01	673.759490949264
2005-01-01	799.165060718915
2006-01-01	922.907159946289
2007-01-01	1106.920409724070
2008-01-01	1397.407189028540
2009-01-01	1273.600289366200
2010-01-01	1479.234067549390
2011-01-01	1588.429698729880
2012-01-01	1787.124172560300
2013-01-01	1813.498124465910
2014-01-01	1792.745172061900
2015-01-01	1555.466758471330
2016-01-01	1449.607191466130
2017-01-01	1624.618252142330