Quarter	Billions of US Dollars
2007-04-01	435.375
2007-07-01	473.763
2007-10-01	506.998
2008-01-01	559.019
2008-04-01	529.049
2008-07-01	525.397
2008-10-01	520.912
2009-01-01	530.024
2009-04-01	555.127
2009-07-01	578.460
2009-10-01	609.664
2010-01-01	698.913
2010-04-01	697.886
2010-07-01	745.970
2010-10-01	820.195
2011-01-01	858.606
2011-04-01	877.150
2011-07-01	824.454
2011-10-01	812.349
2012-01-01	904.559
2012-04-01	859.485
2012-07-01	899.908
2012-10-01	908.893
2013-01-01	959.967
2013-04-01	907.895
2013-07-01	881.647
2013-10-01	918.832
2014-01-01	989.710
2014-04-01	1000.036
2014-07-01	975.943
2014-10-01	973.513
2015-01-01	1016.324
2015-04-01	1012.679
2015-07-01	988.696
2015-10-01	1017.892
2016-01-01	1046.990
2016-04-01	1020.397
2016-07-01	1061.519
2016-10-01	1013.856
2017-01-01	1120.512
2017-04-01	1084.356
2017-07-01	1112.165
2017-10-01	1145.324
2018-01-01	1197.630