Year	US Dollars Per Barrel
2008-01-01	82.9273
2009-01-01	71.4747
2010-01-01	73.8888
2011-01-01	77.4096
2012-01-01	83.2342
2013-01-01	108.2985
2014-01-01	105.7031
2015-01-01	84.4672
2016-01-01	86.7149
2017-01-01	82.6721
2018-01-01	81.5261
2019-01-01	81.4951