Quarter	Billions of US Dollars
2003-07-01	0.02417
2007-01-01	0.05160
2007-04-01	0.31950
2007-07-01	0.01930
2007-10-01	0.05780
2008-01-01	0.02900
2008-04-01	0.33597
2008-07-01	0.04150
2008-10-01	0.01124
2009-01-01	0.12917
2009-04-01	0.07495
2009-07-01	1.15922
2009-10-01	0.64973
2010-01-01	0.48833
2010-04-01	0.50556
2010-07-01	0.50601
2010-10-01	1.44930
2011-01-01	0.27055
2011-04-01	0.78600
2011-07-01	0.95075
2011-10-01	0.46965
2012-01-01	0.87317
2012-04-01	0.29045
2012-07-01	0.30954
2012-10-01	0.60665
2013-01-01	0.61097
2013-04-01	0.64372
2013-07-01	0.67486
2013-10-01	2.38789
2014-01-01	0.21804
2014-04-01	0.79467
2014-07-01	0.19721
2014-10-01	0.04828
2015-01-01	0.42284
2015-04-01	0.72677