Quarter	Billions of US Dollars
2001-04-01	0.005634
2001-07-01	0.005816
2001-10-01	0.005643
2002-01-01	0.005616
2008-01-01	0.006742
2008-04-01	0.006711
2008-07-01	0.012346
2008-10-01	0.012121
2009-01-01	0.005639
2009-04-01	0.005988
2009-07-01	0.008125
2009-10-01	0.036503
2010-01-01	0.034261
2010-04-01	0.026178
2010-07-01	0.029014