Quarter	Billions of US Dollars
2007-10-01	1.10407
2008-01-01	1.18590
2008-04-01	1.18230
2008-07-01	1.07273
2012-01-01	1.33000
2012-04-01	1.33000
2012-07-01	1.33000
2012-10-01	1.33000
2013-04-01	1.86667
2013-07-01	2.04220
2013-10-01	2.04220
2014-01-01	2.04220
2014-04-01	0.17553