Quarter	Billions of US Dollars
2010-04-01	0.60000
2010-07-01	0.60000
2010-10-01	0.00024
2011-01-01	0.00024
2011-04-01	0.71104
2011-07-01	0.72409
2011-10-01	0.73029
2012-01-01	0.73106
2012-04-01	0.72752
2012-07-01	0.72568
2012-10-01	0.73161
2013-01-01	1.73316
2013-04-01	1.00000
2013-07-01	1.00000
2013-10-01	1.00000
2014-01-01	1.00000
2014-04-01	1.00000
2014-07-01	1.00000
2014-10-01	1.00000
2015-01-01	1.00000
2015-04-01	1.00000