Quarter	Billions of US Dollars
2001-10-01	6747.881
2002-01-01	6951.460
2002-04-01	7180.726
2002-07-01	7219.076
2002-10-01	7551.733
2003-01-01	7756.282
2003-04-01	8272.150
2003-07-01	8558.028
2003-10-01	8749.159
2004-01-01	9130.729
2004-04-01	9145.641
2004-07-01	9465.184
2004-10-01	10134.513
2005-01-01	10330.886
2005-04-01	10538.804
2005-07-01	10905.151
2005-10-01	11238.694
2006-01-01	11886.638
2006-04-01	12225.280
2006-07-01	12682.677
2006-10-01	13380.030
2007-01-01	14090.379
2007-04-01	15061.513
2007-07-01	15986.931
2007-10-01	16907.193
2008-01-01	17865.067
2008-04-01	18732.739
2008-07-01	18265.587
2008-10-01	17702.104
2009-01-01	18212.975
2009-04-01	20048.829
2009-07-01	21390.044
2009-10-01	22299.415
2010-01-01	23297.123
2010-04-01	23811.716
2010-07-01	25583.496
2010-10-01	26685.326
2011-01-01	28055.325
2011-04-01	29496.855
2011-07-01	28930.365
2011-10-01	29852.923
2012-01-01	31606.259
2012-04-01	31705.394
2012-07-01	33275.306
2012-10-01	34649.120
2013-01-01	36038.171
2013-04-01	36748.691
2013-07-01	38036.409
2013-10-01	39200.312
2014-01-01	40019.910
2014-04-01	41763.652
2014-07-01	41886.050
2014-10-01	41734.257
2015-01-01	42191.805
2015-04-01	43461.705
2015-07-01	42630.121
2015-10-01	43367.827
2016-01-01	45504.906
2016-04-01	45915.230
2016-07-01	46947.964
2016-10-01	46266.620
2017-01-01	48512.468
2017-04-01	49999.526
2017-07-01	52012.088
2017-10-01	53976.209
2018-01-01	57205.692