Quarter	Billions of US Dollars
1999-01-01	0.00750
1999-04-01	0.05284
1999-07-01	0.00153
1999-10-01	0.09042
2000-01-01	-0.00206
2000-04-01	0.10778
2000-07-01	-0.00870
2000-10-01	0.86590
2001-01-01	0.25376
2001-04-01	1.32669
2001-07-01	1.12569
2001-10-01	0.44934
2002-01-01	0.43822
2002-04-01	0.66387
2002-07-01	-1.43106
2002-10-01	0.28699
2003-01-01	-0.17433
2003-04-01	0.09259
2003-07-01	0.15718
2003-10-01	0.00028
2004-01-01	0.32008
2004-04-01	-0.02151
2004-07-01	-0.71824
2004-10-01	-0.77606
2005-01-01	0.19333
2005-04-01	0.13028
2005-07-01	0.10985
2005-10-01	0.01206
2006-01-01	0.00706
2006-04-01	-0.14152
2006-07-01	-1.03784
2006-10-01	-0.10668
2007-01-01	-0.28289
2007-04-01	0.19930
2007-07-01	0.68511
2007-10-01	-0.39565
2008-01-01	-0.05163
2008-04-01	-0.32478
2008-07-01	-0.32494
2008-10-01	-0.07817
2009-01-01	-0.13064
2009-04-01	-0.19775
2009-07-01	-0.08201
2009-10-01	-0.11329
2010-01-01	-0.21461
2010-04-01	-0.03005
2010-07-01	-0.08929
2010-10-01	-0.17404
2011-01-01	-0.20225
2011-04-01	-0.20261
2011-07-01	-0.05776
2011-10-01	-0.01351
2012-01-01	-0.16398
2012-04-01	-0.10231
2012-07-01	-0.00014
2012-10-01	-0.02866
2013-01-01	-5.86947
2013-04-01	-0.46621
2013-07-01	-9.09887
2013-10-01	-0.00418
2014-01-01	-9.24297
2014-04-01	0.00094
2014-07-01	-9.19744
2014-10-01	-0.05107
2015-01-01	-0.10070
2015-04-01	-0.01665