Quarter	Billions of US Dollars
2003-01-01	0.50000
2003-04-01	0.75000
2003-07-01	0.75000
2003-10-01	0.75000
2004-01-01	0.75000
2004-04-01	0.75000
2004-07-01	0.75000
2004-10-01	0.75000
2005-01-01	0.75000
2005-04-01	0.75000
2005-07-01	0.75000
2005-10-01	0.75000
2006-01-01	0.75000
2006-04-01	0.75000
2006-07-01	0.75000
2006-10-01	0.75000
2007-01-01	0.75000
2007-04-01	0.75000
2007-07-01	0.75000
2007-10-01	0.75000
2008-01-01	0.60000
2008-04-01	0.35000
2008-07-01	0.35000
2008-10-01	0.35000
2009-01-01	0.35000
2009-04-01	1.10000
2009-07-01	1.10000
2009-10-01	1.10000
2010-01-01	2.35000
2010-04-01	3.10000
2010-07-01	3.10000
2010-10-01	3.10000
2011-01-01	3.10000
2011-04-01	3.10000
2011-07-01	3.10000
2011-10-01	3.85000
2012-01-01	3.85000
2012-04-01	3.85000
2012-07-01	5.35000
2012-10-01	5.44810
2013-01-01	5.09713
2013-04-01	5.14158
2013-07-01	6.63814
2013-10-01	6.63713
2014-01-01	6.63768
2014-04-01	5.89017
2014-07-01	7.13755
2014-10-01	7.12876
2015-01-01	7.12108
2015-04-01	6.36936