Year	US Dollars Per Barrel
2009-01-01	49.8587
2010-01-01	49.6996
2011-01-01	54.1668
2012-01-01	52.2677
2013-01-01	53.2500
2014-01-01	54.7578
2015-01-01	39.3321
2016-01-01	49.3796
2017-01-01	49.6465
2018-01-01	56.9589
2019-01-01	54.5560