Quarter	Billions of US Dollars
2013-04-01	0.08093
2013-07-01	0.49013
2013-10-01	0.52023
2014-01-01	0.51933
2014-04-01	0.53805
2014-07-01	0.47257
2014-10-01	0.82250
2015-01-01	0.91746
2015-04-01	0.91135