Quarter	Billions of US Dollars
2002-10-01	0.07315
2003-01-01	0.07460
2003-04-01	0.07791
2003-07-01	0.07996
2004-04-01	0.06685
2004-07-01	0.15648
2004-10-01	0.25880
2005-01-01	0.13470
2005-04-01	0.42877
2005-07-01	0.56287
2005-10-01	1.26281
2006-01-01	1.27930
2006-04-01	1.11117
2006-07-01	1.45974
2006-10-01	0.80435
2007-01-01	1.31743
2007-04-01	1.96923
2007-07-01	2.02176
2007-10-01	1.50780
2008-01-01	1.61391
2008-04-01	1.37167
2008-07-01	1.15408
2008-10-01	0.55267
2009-01-01	0.60285
2009-04-01	2.03127
2009-07-01	2.24589
2009-10-01	3.58460
2010-01-01	4.63496
2010-04-01	2.88211
2010-07-01	4.45242
2010-10-01	2.99641
2011-01-01	1.75746
2011-04-01	1.60430
2011-07-01	0.81731
2011-10-01	0.74707
2012-01-01	0.76080
2012-04-01	0.62950
2012-07-01	0.12000
2012-10-01	0.13700
2013-01-01	0.15700
2013-04-01	0.15180
2013-07-01	0.07180
2013-10-01	0.12828
2014-01-01	0.12327
2014-04-01	0.17061
2014-07-01	0.13424
2014-10-01	0.06555
2015-01-01	0.03421
2015-04-01	0.67672