Quarter	Billions of US Dollars
2002-10-01	15.300
2003-01-01	15.531
2003-04-01	16.693
2003-07-01	17.944
2003-10-01	20.666
2004-01-01	21.180
2004-04-01	21.564
2004-07-01	23.808
2004-10-01	27.103
2005-01-01	26.686
2005-04-01	28.013
2005-07-01	32.034
2005-10-01	35.012
2006-01-01	35.547
2006-04-01	35.696
2006-07-01	38.364
2006-10-01	40.234
2007-01-01	41.711
2007-04-01	44.539
2007-07-01	48.431
2007-10-01	52.697
2008-01-01	61.908
2008-04-01	54.714
2008-07-01	53.885
2008-10-01	48.584
2009-01-01	52.562
2009-04-01	58.460
2009-07-01	57.729
2009-10-01	64.230
2010-01-01	62.714
2010-04-01	62.482
2010-07-01	71.963
2010-10-01	77.029
2011-01-01	76.989
2011-04-01	81.610
2011-07-01	76.724
2011-10-01	78.883
2012-01-01	86.373
2012-04-01	85.356
2012-07-01	94.356
2012-10-01	96.121
2013-01-01	99.430
2013-04-01	95.649
2013-07-01	98.536
2013-10-01	97.919
2014-01-01	96.005
2014-04-01	99.306
2014-07-01	93.000
2014-10-01	96.005
2015-01-01	94.687
2015-04-01	96.365
2015-07-01	89.363
2015-10-01	92.590
2016-01-01	98.990
2016-04-01	103.478
2016-07-01	105.778
2016-10-01	107.381
2017-01-01	110.260
2017-04-01	112.803
2017-07-01	119.786
2017-10-01	127.646
2018-01-01	132.195