Quarter	Billions of US Dollars
2007-01-01	0.17500
2007-04-01	0.17500
2007-07-01	0.17500
2007-10-01	0.17500
2008-01-01	0.17500
2008-04-01	0.17500
2008-07-01	0.17500
2008-10-01	0.17500
2009-01-01	0.17500
2009-04-01	0.17500
2009-07-01	0.17500
2009-10-01	0.17500
2010-01-01	0.26313
2010-04-01	0.26301
2010-07-01	0.26222
2010-10-01	0.26261
2011-01-01	0.26125
2011-04-01	1.26110
2011-07-01	1.25954
2011-10-01	1.25840
2012-01-01	1.08377
2012-04-01	1.08381
2012-07-01	1.08390
2012-10-01	1.08390
2013-01-01	1.08391
2013-04-01	1.38391
2013-07-01	1.68391
2013-10-01	2.08394
2014-01-01	2.08392
2014-04-01	3.50247
2014-07-01	3.95006
2014-10-01	3.94344
2015-01-01	3.86495
2015-04-01	3.87775