Quarter	Billions of US Dollars
2000-01-01	60.405
2000-04-01	60.119
2000-07-01	56.253
2000-10-01	60.147
2001-01-01	57.447
2001-04-01	57.363
2001-07-01	63.695
2001-10-01	63.941
2002-01-01	63.342
2002-04-01	74.277
2002-07-01	76.355
2002-10-01	84.033
2003-01-01	91.134
2003-04-01	93.742
2003-07-01	98.760
2003-10-01	108.267
2004-01-01	105.691
2004-04-01	109.240
2004-07-01	113.476
2004-10-01	128.649
2005-01-01	124.559
2005-04-01	118.946
2005-07-01	125.035
2005-10-01	126.128
2006-01-01	130.481
2006-04-01	142.513
2006-07-01	142.407
2006-10-01	151.458
2007-01-01	151.133
2007-04-01	155.610
2007-07-01	166.102
2007-10-01	176.783
2008-01-01	188.542
2008-04-01	193.774
2008-07-01	177.863
2008-10-01	178.416
2009-01-01	176.507
2009-04-01	199.224
2009-07-01	205.922
2009-10-01	211.309
2010-01-01	205.989
2010-04-01	196.671
2010-07-01	229.066
2010-10-01	231.244
2011-01-01	249.031
2011-04-01	282.682
2011-07-01	272.667
2011-10-01	253.889
2012-01-01	269.898
2012-04-01	261.863
2012-07-01	272.696
2012-10-01	280.454
2013-01-01	276.635
2013-04-01	291.146
2013-07-01	293.411
2013-10-01	303.013
2014-01-01	313.062
2014-04-01	307.618
2014-07-01	289.376
2014-10-01	274.422
2015-01-01	245.581
2015-04-01	254.396
2015-07-01	260.175
2015-10-01	252.056
2016-01-01	265.587
2016-04-01	266.224
2016-07-01	272.667
2016-10-01	253.909
2017-01-01	260.207
2017-04-01	284.121
2017-07-01	294.106
2017-10-01	290.981
2018-01-01	302.336