Quarter	Billions of US Dollars
2001-04-01	0.04314
2001-07-01	0.04645
2001-10-01	0.04483
2002-01-01	0.04438
2003-01-01	0.03850
2003-04-01	0.03850
2003-07-01	0.03850
2003-10-01	0.03850
2008-07-01	0.64364
2008-10-01	0.62626
2009-01-01	0.59886
2009-04-01	0.63603
2010-01-01	0.40437
2010-04-01	0.36813
2010-07-01	0.40944
2010-10-01	0.40086
2011-10-01	0.12939
2012-01-01	0.13356
2012-04-01	0.12590
2012-07-01	0.12930