Quarter	Billions of US Dollars
2008-01-01	0.99810
2008-04-01	1.39629
2008-07-01	-1.21603
2008-10-01	-0.99067
2009-01-01	0.18486
2009-04-01	-0.09045
2009-07-01	0.81736
2009-10-01	-0.46097
2010-01-01	0.62430
2010-04-01	-0.43197
2010-07-01	0.03809
2010-10-01	0.04007
2011-01-01	0.22683
2011-04-01	-0.44329
2011-07-01	-0.05644
2011-10-01	0.63947
2012-01-01	-0.65214
2012-04-01	-0.38461
2012-10-01	0.12973
2013-01-01	-0.13201
2013-04-01	0.39195
2013-07-01	0.19867
2013-10-01	-0.20416
2014-01-01	0.17020
2014-04-01	-0.21116
2014-07-01	0.02649
2015-01-01	0.11260