Quarter	Billions of US Dollars
2005-04-01	0.10924
2005-07-01	0.37568
2005-10-01	0.42582
2006-01-01	0.48278
2006-04-01	0.50546
2006-07-01	0.64647
2006-10-01	0.72501
2007-01-01	0.91966
2007-04-01	0.92554
2007-07-01	1.01930
2007-10-01	1.06178
2008-01-01	0.94751
2008-04-01	1.30428
2008-07-01	0.83825
2008-10-01	0.81844
2009-01-01	0.79966
2009-04-01	2.48732
2009-07-01	2.57257
2009-10-01	2.53415
2010-01-01	2.28664
2010-04-01	2.13019
2010-07-01	2.25950
2010-10-01	2.26602
2011-01-01	0.98526
2011-04-01	1.29806
2011-07-01	0.94866
2011-10-01	0.87733
2012-01-01	0.89901
2012-04-01	0.81718
2012-07-01	0.87486
2012-10-01	0.94759
2013-01-01	0.94736
2013-04-01	0.89346
2013-07-01	0.91556
2013-10-01	0.95243
2014-01-01	2.18968
2014-04-01	2.21909
2014-07-01	2.03274
2014-10-01	1.93172
2015-01-01	1.83980
2015-04-01	1.87134