Quarter	Billions of US Dollars
2006-10-01	0.09219
2007-01-01	0.09323
2007-04-01	0.11390
2007-07-01	0.11929
2007-10-01	0.02037
2008-01-01	0.02426
2008-04-01	0.02432
2008-07-01	0.02280
2008-10-01	0.02002
2009-01-01	0.01770
2009-04-01	0.01898
2009-07-01	0.01962
2009-10-01	0.01953
2010-01-01	0.02003
2010-04-01	0.00300
2010-07-01	1.00300
2010-10-01	1.23268
2011-01-01	2.04623
2011-04-01	2.04933
2011-07-01	2.01961
2011-10-01	2.01742
2012-01-01	2.03868
2012-04-01	2.01330
2012-07-01	2.02641
2012-10-01	1.80000
2013-01-01	1.80000
2013-04-01	1.80000
2013-07-01	1.80000
2013-10-01	1.80000
2014-01-01	1.80000
2014-04-01	1.80000
2014-07-01	1.80000
2014-10-01	1.80000
2015-01-01	1.80000
2015-04-01	1.80000