Quarter	Billions of US Dollars
2010-10-01	0.06000
2011-01-01	0.19699
2011-10-01	0.01286
2012-01-01	0.21347
2012-04-01	0.21956
2012-07-01	0.15297
2012-10-01	0.08690
2013-01-01	0.20831
2013-10-01	0.30391
2014-01-01	0.63993
2014-04-01	0.64362
2014-07-01	0.05893
2014-10-01	0.39828
2015-01-01	0.14050
2015-04-01	0.20394