Quarter	Billions of US Dollars
2003-01-01	82.582
2003-04-01	88.664
2003-07-01	96.625
2003-10-01	107.133
2004-01-01	96.276
2004-04-01	101.139
2004-07-01	106.748
2004-10-01	122.456
2005-01-01	114.656
2005-04-01	100.386
2005-07-01	102.421
2005-10-01	102.597
2006-01-01	106.794
2006-04-01	113.113
2006-07-01	108.653
2006-10-01	118.233
2007-01-01	117.046
2007-04-01	117.842
2007-07-01	119.174
2007-10-01	119.678
2008-01-01	126.874
2008-04-01	124.766
2008-07-01	111.430
2008-10-01	96.453
2009-01-01	90.663
2009-04-01	99.625
2009-07-01	110.651
2009-10-01	104.107
2010-01-01	104.704
2010-04-01	100.237
2010-07-01	402.043
2010-10-01	404.465
2011-01-01	426.771
2011-04-01	425.864
2011-07-01	400.593
2011-10-01	402.097
2012-01-01	414.293
2012-04-01	393.397
2012-07-01	428.046
2012-10-01	421.274
2013-01-01	368.135
2013-04-01	354.073
2013-07-01	377.437
2013-10-01	387.499
2014-01-01	394.931
2014-04-01	362.387
2014-07-01	348.118
2014-10-01	336.846
2015-01-01	309.988