Quarter	Billions of US Dollars
1998-04-01	0.00045
1998-07-01	0.00011
1998-10-01	0.15265
1999-04-01	-0.00117
1999-07-01	0.13495
1999-10-01	0.00351
2000-01-01	0.00000
2000-04-01	-0.00693
2000-07-01	0.00857
2000-10-01	0.27818
2001-01-01	0.00010
2001-04-01	-0.01180
2001-07-01	-0.04897
2001-10-01	-0.01129
2002-01-01	-0.01061
2002-04-01	-0.03845
2002-07-01	-0.00928
2002-10-01	-0.00787
2003-01-01	-0.02082
2003-04-01	-0.01775
2003-07-01	-0.00984
2003-10-01	-0.00839
2004-01-01	0.01221
2005-01-01	0.10416
2005-04-01	0.20734
2005-07-01	0.00496
2005-10-01	-0.02543
2006-01-01	0.53609
2006-04-01	0.63727
2006-07-01	0.65538
2006-10-01	0.78899
2007-01-01	1.19416
2007-04-01	1.17828
2007-07-01	1.57326
2007-10-01	1.63087
2008-01-01	1.10670
2008-04-01	1.53780
2008-07-01	-0.03485
2008-10-01	0.85444
2009-01-01	0.08658
2009-04-01	0.66665
2009-07-01	0.24108
2009-10-01	0.44640
2010-01-01	0.52881
2010-04-01	-0.67098
2010-07-01	0.39249
2010-10-01	1.94692
2011-01-01	2.69983
2011-04-01	0.66494
2011-07-01	0.78761
2011-10-01	2.60097
2012-01-01	2.52785
2012-04-01	0.39201
2012-07-01	5.44286
2012-10-01	3.81180
2013-01-01	2.03146
2013-04-01	0.35436
2013-07-01	0.59674
2013-10-01	0.25722
2014-01-01	-0.72421
2014-04-01	1.27701
2014-07-01	-0.36388
2014-10-01	-0.05702
2015-01-01	0.44921
2015-04-01	0.15200