Quarter	Billions of US Dollars
2009-01-01	0.25000
2009-04-01	0.60000
2009-07-01	0.60000
2009-10-01	0.60000
2010-01-01	0.35000
2010-04-01	0.59976
2010-07-01	0.59976
2010-10-01	0.06000
2011-01-01	0.40954
2011-04-01	0.23162
2011-07-01	0.34570
2011-10-01	0.30036
2012-01-01	0.50147
2012-04-01	0.71985
2012-07-01	0.75041
2012-10-01	0.83840
2013-01-01	0.77554
2013-04-01	0.61663
2013-07-01	0.31709
2013-10-01	0.61509
2014-01-01	0.98047
2014-04-01	1.68265
2014-07-01	1.59359
2014-10-01	1.34594
2015-01-01	0.84570
2015-04-01	0.67630