Quarter	Billions of US Dollars
2004-04-01	0.00171
2005-01-01	0.22428
2005-04-01	-0.00461
2005-07-01	0.00979
2005-10-01	0.01204
2006-01-01	-0.13167
2006-04-01	0.02078
2006-07-01	-0.01747
2006-10-01	0.05580
2007-01-01	0.49009
2007-04-01	0.98634
2007-07-01	0.48300
2007-10-01	0.35411
2008-01-01	-0.31141
2008-04-01	-0.97140
2008-07-01	-0.63232
2008-10-01	-0.33948
2009-01-01	-0.20915
2009-04-01	0.22257
2009-07-01	-0.11950
2009-10-01	0.21880
2010-01-01	0.38264
2010-04-01	-0.05102
2010-07-01	-0.10255
2010-10-01	-0.59812
2011-01-01	-0.12130
2011-04-01	0.21814
2011-07-01	-0.15670
2011-10-01	-0.01080
2012-01-01	-0.03525
2012-04-01	0.94728
2012-07-01	-0.79834
2012-10-01	0.11027
2013-01-01	0.27947
2013-04-01	0.08448
2013-07-01	-0.06895
2013-10-01	-0.16663
2014-01-01	0.04716
2014-04-01	0.12961
2014-07-01	0.19714
2014-10-01	-0.04383
2015-01-01	-0.25185
2015-04-01	-0.06666