Quarter	Billions of US Dollars
2003-10-01	0.27000
2006-07-01	0.42600
2006-10-01	0.96123
2007-07-01	0.17500
2008-04-01	1.33000
2008-10-01	-0.99067
2009-07-01	1.86710
2012-04-01	1.75000
2013-01-01	-1.33000
2013-04-01	2.00000
2014-04-01	1.63333
2014-07-01	-0.17553