Quarter	Billions of US Dollars
2005-07-01	0.15
2005-10-01	0.15
2006-01-01	0.15
2006-04-01	0.15
2011-01-01	0.42
2011-04-01	0.42
2011-07-01	0.48
2011-10-01	0.48
2012-01-01	0.06
2012-04-01	0.06
2014-04-01	0.50
2014-07-01	0.50
2014-10-01	0.50
2015-01-01	0.50