Quarter	Billions of US Dollars
2005-07-01	0.10753
2005-10-01	0.55377
2006-01-01	0.46989
2006-04-01	0.18340
2006-07-01	1.59860
2006-10-01	1.15062
2007-01-01	1.13228
2007-04-01	-0.08810
2007-07-01	-0.53807
2007-10-01	-1.42584
2008-01-01	1.29780
2008-04-01	-0.52517
2008-07-01	0.45094
2008-10-01	-3.26145
2009-01-01	-0.08116
2009-04-01	-0.05546
2009-07-01	0.13229
2009-10-01	-0.13901
2010-01-01	-0.57771
2010-04-01	-0.21823
2010-07-01	0.03300
2010-10-01	-0.17941
2011-01-01	0.07846
2011-04-01	-0.02547
2011-07-01	0.08040
2011-10-01	-0.14716
2012-01-01	1.41555
2012-04-01	0.64652
2012-07-01	0.44464
2012-10-01	0.39321
2013-01-01	0.44665
2013-04-01	0.82281
2013-07-01	0.41395
2013-10-01	0.59733
2014-01-01	-0.73025
2014-04-01	1.07656
2014-07-01	0.11465
2014-10-01	-0.20454
2015-01-01	-0.61691
2015-04-01	0.58480