Quarter	Billions of US Dollars
2005-07-01	0.10753
2005-10-01	0.55377
2006-01-01	0.82702
2006-04-01	0.89851
2006-07-01	2.56596
2006-10-01	3.60088
2007-01-01	4.19438
2007-04-01	3.71319
2007-07-01	3.35706
2007-10-01	2.70208
2008-01-01	4.06789
2008-04-01	2.93508
2008-07-01	3.31490
2008-10-01	0.22686
2009-01-01	0.80721
2009-04-01	0.97733
2009-07-01	1.17764
2009-10-01	0.83084
2010-01-01	0.31656
2010-04-01	0.18610
2010-07-01	0.18805
2010-10-01	0.13439
2011-01-01	0.18897
2011-04-01	0.25287
2011-07-01	0.20930
2011-10-01	0.20189
2012-01-01	1.61200
2012-04-01	1.83893
2012-07-01	1.75140
2012-10-01	1.43537
2013-01-01	2.12436
2013-04-01	2.47853
2013-07-01	2.30240
2013-10-01	2.91337
2014-01-01	2.97731
2014-04-01	3.50159
2014-07-01	2.90768
2014-10-01	2.18471
2015-01-01	2.20418
2015-04-01	3.67044