Quarter	Billions of US Dollars
1998-10-01	0.02293
1999-01-01	0.00090
1999-04-01	0.03329
1999-10-01	0.01794
2000-01-01	-0.00077
2001-04-01	0.06789
2001-07-01	0.25388
2001-10-01	0.02851
2002-01-01	0.35594
2002-04-01	-0.00095
2002-07-01	0.13118
2002-10-01	0.03638
2003-01-01	0.37869
2003-04-01	0.01616
2003-07-01	0.14256
2003-10-01	0.20836
2004-01-01	1.00442
2004-04-01	0.27188
2004-07-01	0.54915
2004-10-01	0.80545
2005-01-01	0.11521
2005-04-01	0.06639
2005-07-01	-0.09841
2005-10-01	-0.13219
2006-01-01	-0.41953
2006-04-01	0.09109
2006-07-01	-0.16111
2006-10-01	-0.08469
2007-01-01	-0.56036
2007-04-01	0.18812
2007-07-01	-0.29262
2007-10-01	0.06174
2008-01-01	-0.09944
2008-04-01	0.29565
2008-07-01	-0.16026
2008-10-01	0.02335
2009-01-01	-0.56524
2009-04-01	-0.14793
2009-07-01	-0.09278
2009-10-01	-0.20522
2010-01-01	-0.02552
2010-04-01	-0.20148
2010-07-01	-0.21436
2010-10-01	-0.04570
2011-01-01	-0.21006
2011-04-01	-0.09508
2011-07-01	-0.03288
2011-10-01	-0.04865
2012-01-01	-0.21819
2012-04-01	0.00009
2012-07-01	-0.03922
2012-10-01	-0.05530
2013-01-01	-0.11022
2013-04-01	-0.04049
2013-07-01	-0.03491
2013-10-01	0.02989
2014-01-01	0.04391
2014-04-01	0.03140
2014-07-01	0.01233
2014-10-01	-0.00296
2015-01-01	-0.23311
2015-04-01	-0.01054