Year	US Dollars Per Barrel
2009-01-01	75.0000
2010-01-01	68.5000
2011-01-01	66.0493
2012-01-01	46.4226
2013-01-01	46.9794
2014-01-01	46.0293
2015-01-01	37.4396
2016-01-01	39.4248
2017-01-01	37.8282
2018-01-01	43.7596
2019-01-01	41.7067