Quarter	Billions of US Dollars
2005-04-01	0.13606
2005-07-01	0.22028
2005-10-01	-0.00041
2006-01-01	0.04606
2006-04-01	0.08684
2006-07-01	0.01366
2006-10-01	0.06026
2007-01-01	0.11668
2007-04-01	0.26072
2007-07-01	0.11652
2007-10-01	0.45432
2008-01-01	0.02647
2008-04-01	0.17323
2008-07-01	0.16780
2008-10-01	-0.14179
2009-01-01	-0.37395
2009-04-01	-0.19541
2009-07-01	0.05372
2009-10-01	-0.00826
2010-01-01	0.32520
2010-04-01	-0.02952
2010-07-01	-0.19572
2010-10-01	0.02730
2011-01-01	-0.16589
2011-04-01	-0.06277
2011-07-01	-0.09996
2011-10-01	-0.01837
2012-01-01	0.06792
2012-04-01	-0.04080
2012-07-01	-0.01630
2012-10-01	-0.03385
2013-01-01	-0.05056
2013-04-01	-0.06974
2013-07-01	-0.03392
2014-01-01	-0.02573
2014-04-01	0.00092
2014-07-01	-0.00540