Quarter	Billions of US Dollars
2001-10-01	120.795
2002-01-01	127.529
2002-04-01	142.405
2002-07-01	136.636
2002-10-01	135.963
2003-01-01	136.915
2003-04-01	147.551
2003-07-01	145.546
2003-10-01	145.237
2004-01-01	144.846
2004-04-01	133.760
2004-07-01	139.093
2004-10-01	138.956
2005-01-01	136.699
2005-04-01	132.932
2005-07-01	126.450
2005-10-01	132.716
2006-01-01	143.611
2006-04-01	140.243
2006-07-01	140.521
2006-10-01	143.831
2007-01-01	144.132
2007-04-01	147.966
2007-07-01	148.556
2007-10-01	146.948
2008-01-01	156.445
2008-04-01	162.845
2008-07-01	165.905
2008-10-01	148.485
2009-01-01	137.988
2009-04-01	157.040
2009-07-01	165.760
2009-10-01	169.220
2010-01-01	174.890
2010-04-01	177.570
2010-07-01	185.300
2010-10-01	187.040
2011-01-01	194.590
2011-04-01	200.520
2011-07-01	198.900
2011-10-01	199.490
2012-01-01	202.550
2012-04-01	204.470
2012-07-01	206.050
2012-10-01	204.520
2013-01-01	204.880
2013-04-01	205.070
2013-07-01	195.790
2013-10-01	194.890
2014-01-01	212.458
2014-04-01	209.501
2014-07-01	213.046
2014-10-01	209.709
2015-01-01	213.684
2015-04-01	214.835
2015-07-01	210.893
2015-10-01	229.440
2016-01-01	243.794
2016-04-01	255.140
2016-07-01	265.027
2016-10-01	261.645
2017-01-01	274.082
2017-04-01	278.288
2017-07-01	286.574
2017-10-01	292.524
2018-01-01	296.644