Quarter	Billions of US Dollars
2010-04-01	0.75000
2010-07-01	0.75000
2010-10-01	0.75000
2011-01-01	0.75000
2011-10-01	0.05983
2012-01-01	0.05974
2012-04-01	0.05955
2012-07-01	0.05921