Month Millions of Dollars 2011-01-01 0.0000000000000000 2011-02-01 0.0000000000000000 2011-03-01 0.0000000000000000 2011-04-01 0.0000000000000000 2011-05-01 3.1519300000000000 2011-06-01 1.1446290000000000 2011-07-01 1.6375650000000000 2011-08-01 3.7275010000000006 2011-09-01 0.9629190000000002 2011-10-01 3.3542530000000000 2011-11-01 4.1545000000000000 2011-12-01 5.6697120000000000 2012-01-01 6.1361170000000000 2012-02-01 5.3277530000000000 2012-03-01 9.8992670000000000 2012-04-01 6.2083220000000000 2012-05-01 4.6038620000000000 2012-06-01 3.9624310000000000 2012-07-01 2.9550470000000000 2012-08-01 1.5185810000000000 2012-09-01 1.2572560000000000 2012-10-01 3.5532380000000000 2012-11-01 7.0532780000000000 2012-12-01 2.4930730000000000 2013-01-01 5.1995520000000000 2013-02-01 5.1219260000000000 2013-03-01 4.4347810000000000 2013-04-01 7.7859610000000000 2013-05-01 5.5203270000000000 2013-06-01 1.8962830000000000 2013-07-01 1.2920640000000000 2013-08-01 4.0580470000000000 2013-09-01 1.9684530000000000 2013-10-01 4.6399530000000000 2013-11-01 8.2938830000000000 2013-12-01 9.7927210000000000 2014-01-01 8.2289890000000000 2014-02-01 4.2249470000000000 2014-03-01 4.0971000000000000 2014-04-01 5.5665870000000000 2014-05-01 4.5285170000000000 2014-06-01 1.4442770000000000 2014-07-01 2.8324080000000000 2014-08-01 2.9725580000000000 2014-09-01 3.3234510000000000 2014-10-01 2.8798830000000000 2014-11-01 5.2575420000000000 2014-12-01 4.2768030000000000 2015-01-01 4.4721470000000000 2015-02-01 5.1397410000000000 2015-03-01 7.0917970000000000 2015-04-01 4.3201680000000000 2015-05-01 7.5938580000000000 2015-06-01 2.1416410000000000 2015-07-01 2.7414060000000000 2015-08-01 1.1825490000000000 2015-09-01 2.4160750000000000 2015-10-01 5.1009630000000000 2015-11-01 3.8831330000000000 2015-12-01 5.6811390000000000 2016-01-01 12.1002640000000000 2016-02-01 10.2773470000000000 2016-03-01 9.1375300000000000 2016-04-01 11.9862650000000000 2016-05-01 5.3442260000000000 2016-06-01 3.6544370000000000 2016-07-01 4.0809540000000000 2016-08-01 2.8893190000000000 2016-09-01 3.8784630000000000 2016-10-01 4.1777090000000000 2016-11-01 9.8876590000000000 2016-12-01 15.0829690000000000 2017-01-01 15.4206510000000000 2017-02-01 6.7098830000000000 2017-03-01 11.2565470000000000 2017-04-01 6.8644480000000000 2017-05-01 8.1003380000000000 2017-06-01 6.7266120000000000 2017-07-01 1.4969280000000000 2017-08-01 2.8739390000000000 2017-09-01 0.2311290000000000 2017-10-01 0.2808720000000000 2017-11-01 5.9357730000000000 2017-12-01 5.2269290000000000 2018-01-01 10.5769080000000000 2018-02-01 8.2717190000000000 2018-03-01 11.3229760000000000 2018-04-01 7.6525480000000000 2018-05-01 9.1044510000000000 2018-06-01 3.5051110000000000 2018-07-01 2.4380450000000000 2018-08-01 8.1530610000000000 2018-09-01 5.7892880000000000 2018-10-01 3.9028880000000000