Quarter	Billions of US Dollars
1998-04-01	0.00045
1998-07-01	0.00011
1998-10-01	0.15267
1999-07-01	0.13868
1999-10-01	0.00351
2000-01-01	0.00000
2000-04-01	0.02234
2000-07-01	0.00857
2000-10-01	0.27819
2001-01-01	0.00010
2001-04-01	0.00200
2001-07-01	0.00248
2001-10-01	0.00058
2002-01-01	0.00171
2004-01-01	0.02094
2005-01-01	0.10416
2005-04-01	0.20734
2005-07-01	0.00496
2005-10-01	0.00941
2006-01-01	0.56455
2006-04-01	0.64205
2006-07-01	0.66098
2006-10-01	0.88302
2007-01-01	1.41001
2007-04-01	1.26035
2007-07-01	1.55675
2007-10-01	1.72273
2008-01-01	1.49989
2008-04-01	1.35645
2008-07-01	0.66486
2008-10-01	1.10406
2009-01-01	0.26836
2009-04-01	1.14095
2009-07-01	1.03543
2009-10-01	0.98774
2010-01-01	1.52911
2010-04-01	0.27026
2010-07-01	1.17769
2010-10-01	2.53867
2011-01-01	3.29268
2011-04-01	3.06388
2011-07-01	1.42327
2011-10-01	2.90969
2012-01-01	3.80285
2012-04-01	1.62602
2012-07-01	6.24603
2012-10-01	5.37646
2013-01-01	4.57554
2013-04-01	1.06927
2013-07-01	1.47132
2013-10-01	0.75640
2014-01-01	0.22803
2014-04-01	2.01664
2014-07-01	0.22020
2014-10-01	0.21596
2015-01-01	0.63498
2015-04-01	0.44548