Quarter	Billions of US Dollars
2006-01-01	277.778
2006-04-01	273.884
2006-07-01	287.996
2006-10-01	304.038
2007-01-01	545.991
2007-04-01	600.575
2007-07-01	660.060
2007-10-01	694.781
2008-01-01	757.311
2008-04-01	806.805
2008-07-01	830.803
2008-10-01	837.417
2009-01-01	896.998
2009-04-01	990.884
2009-07-01	1104.756
2009-10-01	1195.424
2010-01-01	1359.320
2010-04-01	1488.782
2010-07-01	1600.791
2010-10-01	1697.808
2011-01-01	1815.645
2011-04-01	1947.103
2011-07-01	2055.288
2011-10-01	2144.354
2012-01-01	2226.850
2012-04-01	2304.278
2012-07-01	2455.469
2012-10-01	2571.082
2013-01-01	2733.061
2013-04-01	2945.538
2013-07-01	3115.071
2013-10-01	3251.794
2014-01-01	3312.419
2014-04-01	3472.978
2014-07-01	3632.739
2014-10-01	3692.915
2015-01-01	3838.286
2015-04-01	4009.387
2015-07-01	4073.468
2015-10-01	4121.901
2016-01-01	4331.527
2016-04-01	4463.291
2016-07-01	4706.208
2016-10-01	4745.391
2017-01-01	5049.958
2017-04-01	5412.317
2017-07-01	5805.845
2017-10-01	6141.669
2018-01-01	6629.223