Quarter	Billions of US Dollars
2011-07-01	0.18527
2011-10-01	0.12072
2012-01-01	0.22938
2012-04-01	0.30251
2012-07-01	1.05361
2012-10-01	0.38477
2013-01-01	2.14370
2013-04-01	0.85849
2013-07-01	0.00462
2013-10-01	0.00143