Quarter	Billions of US Dollars
2011-04-01	0.071250
2011-07-01	0.068210
2011-10-01	0.041405
2012-01-01	0.092739
2012-04-01	0.050000
2012-07-01	0.050000
2012-10-01	0.050000
2013-01-01	0.050000