Quarter	Billions of US Dollars
2006-04-01	0.10397
2006-07-01	0.24778
2006-10-01	0.00501
2007-01-01	0.15116
2007-04-01	0.00536
2007-07-01	0.14052
2007-10-01	0.00076
2008-01-01	0.04601
2009-04-01	0.09991
2009-07-01	0.03378
2009-10-01	0.00069
2010-01-01	0.00025
2010-07-01	0.00006
2010-10-01	0.09930
2011-01-01	0.00273
2011-07-01	0.05001
2011-10-01	0.04989
2012-01-01	0.00031
2012-04-01	0.00637
2012-10-01	0.04919
2013-01-01	0.00000
2014-07-01	0.11784