Quarter	Billions of US Dollars
2006-10-01	0.01741
2007-01-01	0.01734
2007-04-01	0.05582
2007-07-01	0.05747
2007-10-01	0.04197
2008-01-01	0.09547
2008-04-01	0.05103
2008-07-01	0.05103
2008-10-01	0.05103
2009-01-01	0.13533
2009-04-01	0.17507
2009-07-01	0.20656
2009-10-01	0.20506
2010-01-01	0.13560
2010-04-01	0.11436
2010-07-01	0.09589
2010-10-01	0.10993
2011-01-01	0.03366
2011-04-01	0.04615
2011-07-01	0.04589
2011-10-01	0.14072
2012-01-01	0.14352
2012-04-01	0.10719
2012-07-01	0.11009
2013-01-01	0.06000
2013-04-01	0.06000
2013-07-01	0.06000
2013-10-01	0.06000