Quarter	Billions of US Dollars
2011-01-01	0.17500
2011-04-01	0.17500
2011-07-01	0.17500
2011-10-01	0.17500
2014-01-01	0.08392
2014-04-01	0.08392
2014-07-01	0.08391
2014-10-01	0.07779