Month Millions of Dollars 2011-01-01 0.00000000000000000 2011-02-01 0.00000000000000000 2011-03-01 0.00000000000000000 2011-04-01 0.00000000000000000 2011-05-01 0.00000000000000000 2011-06-01 0.00000000000000000 2011-07-01 0.00000000000000000 2011-08-01 0.95284800000000010 2011-09-01 0.17484400000000000 2011-10-01 0.29391899999999993 2011-11-01 0.00000000000000000 2011-12-01 2.73806300000000000 2012-01-01 0.84976200000000000 2012-02-01 0.00000000000000000 2012-03-01 2.35675400000000000 2012-04-01 0.35295700000000000 2012-05-01 0.69370000000000000 2012-06-01 0.57891500000000000 2012-07-01 0.61149400000000000 2012-08-01 0.11000000000000000 2012-09-01 0.07416800000000000 2012-10-01 0.56000000000000000 2012-11-01 0.22400000000000000 2012-12-01 0.11244700000000000 2013-01-01 0.25600000000000000 2013-02-01 0.14800000000000000 2013-03-01 0.90580600000000000 2013-04-01 1.15000000000000000 2013-05-01 1.05656000000000000 2013-06-01 1.20814600000000000 2013-07-01 1.10530400000000000 2013-08-01 0.92395500000000000 2013-09-01 0.62600000000000000 2013-10-01 1.19580000000000000 2013-11-01 1.20160200000000000 2013-12-01 0.59137400000000000 2014-01-01 0.78560000000000000 2014-02-01 0.07241800000000000 2014-03-01 0.74400000000000000 2014-04-01 0.56400000000000000 2014-05-01 0.41990000000000000 2014-06-01 1.22599600000000000 2014-07-01 2.83515500000000000 2014-08-01 1.38051500000000000 2014-09-01 0.03343400000000000 2014-10-01 1.25030200000000000 2014-11-01 0.92005600000000000 2014-12-01 1.71173100000000000 2015-01-01 0.09905600000000000 2015-02-01 0.56763700000000000 2015-03-01 1.04354300000000000 2015-04-01 1.32602900000000000 2015-05-01 1.10188300000000000 2015-06-01 0.27132400000000000 2015-07-01 0.38808000000000000 2015-08-01 0.89391400000000000 2015-09-01 1.05679300000000000 2015-10-01 0.65680600000000000 2015-11-01 1.17994800000000000 2015-12-01 0.38824000000000000 2016-01-01 0.86984100000000000 2016-02-01 6.09468500000000000 2016-03-01 1.09440200000000000 2016-04-01 1.44521900000000000 2016-05-01 1.16128600000000000 2016-06-01 1.62367100000000000 2016-07-01 0.40979200000000000 2016-08-01 0.59133800000000000 2016-09-01 0.00039500000000000 2016-10-01 0.00103600000000000 2016-11-01 0.17645100000000000 2016-12-01 1.28779900000000000 2017-01-01 0.76700500000000000 2017-02-01 0.00286200000000000 2017-03-01 1.15971200000000000 2017-04-01 1.78364400000000000 2017-05-01 0.59120800000000000 2017-06-01 2.11263600000000000 2017-07-01 0.18517500000000000 2017-08-01 1.51912500000000000 2017-09-01 1.74431300000000000 2017-10-01 0.61191300000000000 2017-11-01 1.07486800000000000 2017-12-01 1.49989500000000000 2018-01-01 1.51861800000000000 2018-02-01 2.24796300000000000 2018-03-01 1.07292900000000000 2018-04-01 1.21758600000000000 2018-05-01 0.55285100000000000 2018-06-01 1.38720600000000000 2018-07-01 1.36266800000000000 2018-08-01 0.51892900000000000 2018-09-01 1.62611300000000000 2018-10-01 2.29010600000000000