Quarter	Billions of US Dollars
2005-04-01	0.01789
2005-07-01	0.02282
2005-10-01	0.01545
2006-01-01	0.01750
2006-04-01	0.08132
2006-07-01	0.00525
2006-10-01	0.14197
2007-01-01	0.04713
2007-04-01	0.04665
2007-07-01	0.01010
2007-10-01	0.03126
2008-01-01	0.00006
2009-10-01	0.01626
2010-01-01	0.00400
2010-07-01	0.19111
2010-10-01	0.03823
2012-07-01	0.00574
2012-10-01	0.04817
2013-04-01	0.00330
2015-01-01	0.00267
2015-04-01	0.00588