Quarter	Billions of US Dollars
1998-04-01	0.02759
1998-07-01	0.02817
1999-01-01	0.02660
1999-04-01	-0.04921
1999-07-01	0.02518
1999-10-01	0.37106
2000-01-01	0.30273
2000-04-01	0.15990
2000-07-01	0.00046
2000-10-01	0.20607
2001-01-01	-0.01834
2001-04-01	-0.28449
2001-07-01	-0.02371
2001-10-01	-0.43253
2002-01-01	-0.25414
2002-04-01	-0.01954
2002-10-01	-0.10008
2003-01-01	0.06590
2003-04-01	0.03103
2003-07-01	0.16517
2003-10-01	0.01751
2004-01-01	0.00914
2004-04-01	0.06164
2004-07-01	0.01746
2004-10-01	0.08060
2005-01-01	0.16578
2005-04-01	0.06749
2005-07-01	-0.02931
2005-10-01	-0.09809
2006-01-01	0.17415
2006-04-01	-0.03035
2006-07-01	0.03335
2006-10-01	0.45333
2007-01-01	0.14312
2007-04-01	0.12900
2007-07-01	0.13381
2007-10-01	0.27780
2008-01-01	-0.45685
2008-04-01	0.76151
2008-07-01	-0.46925
2008-10-01	0.31960
2009-01-01	-0.23742
2009-04-01	-0.13313
2009-07-01	0.15622
2009-10-01	-0.00877
2010-01-01	0.36778
2010-04-01	0.13461
2010-07-01	0.24626
2010-10-01	0.07087
2011-01-01	-0.08715
2011-04-01	0.44001
2011-07-01	-0.48941
2011-10-01	-1.96114
2012-01-01	-0.09065
2012-04-01	-0.02184
2012-07-01	0.00290
2012-10-01	0.02848
2013-01-01	0.07263
2013-04-01	-0.07895
2013-07-01	0.00374
2013-10-01	-0.07192
2014-01-01	-0.02384
2014-04-01	-0.01627
2014-07-01	-0.01997
2014-10-01	-0.00510
2015-01-01	-0.00153
2015-04-01	0.00200
