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	0.92733
2009-07-01	1.17764
2009-10-01	0.83084
2010-01-01	0.31656
2010-04-01	0.20407
2010-07-01	0.18805
2010-10-01	0.16939
2011-01-01	0.31397
2011-04-01	0.43320
2011-07-01	0.38134
2011-10-01	0.42518
2012-01-01	2.02637
2012-04-01	2.31978
2012-07-01	2.20113
2012-10-01	1.81187
2013-01-01	2.80351
2013-04-01	2.69925
2013-07-01	3.41256
2013-10-01	3.18118
2014-01-01	2.75548
2014-04-01	4.00228
2014-07-01	3.36743
2014-10-01	2.74152
2015-01-01	2.80771
2015-04-01	3.94206