Quarter	Billions of US Dollars
1997-01-01	0.00373
1997-04-01	0.00390
1997-07-01	0.00408
1997-10-01	0.00426
2005-04-01	2.00000
2005-07-01	2.00000
2005-10-01	2.00000
2006-01-01	2.00000
2006-04-01	2.00000
2006-07-01	2.00000
2006-10-01	2.00000
2007-01-01	2.00000
2007-04-01	2.00000
2007-07-01	2.00000
2007-10-01	2.00000
2008-01-01	2.00000
2008-04-01	2.00000
2008-07-01	2.00000
2008-10-01	2.00000
2009-01-01	2.00000
2009-04-01	2.00000
2009-07-01	2.00000
2009-10-01	2.01314
2010-01-01	2.01314
2010-04-01	2.01314
2010-07-01	2.01314
2010-10-01	2.01314
2011-01-01	2.01314
2011-04-01	2.01314
2011-07-01	2.01314
2011-10-01	2.01314
2012-01-01	2.01314
2012-04-01	2.01314
2012-07-01	2.01314
2012-10-01	2.01314
2013-01-01	2.01314
2013-04-01	2.01314
2013-07-01	2.01314
2013-10-01	2.01314
2014-01-01	2.01314
2014-04-01	2.01314
2014-07-01	2.01314
2014-10-01	2.01314
2015-01-01	2.01314
2015-04-01	0.01314