Quarter	Billions of US Dollars
2002-07-01	0.23000
2004-01-01	0.80000
2005-01-01	1.07500
2005-04-01	0.90000
2005-07-01	0.50753
2005-10-01	2.35877
2006-01-01	0.83202
2006-04-01	2.45397
2006-07-01	1.47415
2006-10-01	4.33458
2007-01-01	4.40456
2007-04-01	0.80732
2007-07-01	-0.58233
2007-10-01	-0.48307
2008-01-01	3.12543
2008-04-01	1.09918
2008-07-01	0.40708
2008-10-01	-3.62697
2009-01-01	-1.76496
2009-04-01	0.08985
2009-07-01	1.47189
2009-10-01	1.27771
2010-01-01	-1.24657
2010-04-01	-1.34131
2010-07-01	-0.26634
2010-10-01	-2.06919
2011-01-01	1.04854
2011-04-01	-1.92277
2011-07-01	0.67328
2011-10-01	0.29000
2012-01-01	1.29038
2012-04-01	0.34265
2012-07-01	2.25493
2012-10-01	3.55340
2013-01-01	2.29571
2013-04-01	3.96546
2013-07-01	0.86775
2013-10-01	1.05339
2014-01-01	0.00165
2014-04-01	3.33519
2014-07-01	-0.20844
2014-10-01	-0.63101
2015-01-01	3.79232
2015-04-01	3.88921