Quarter	Billions of US Dollars
1996-04-01	0.07493
1997-04-01	0.24377
1997-10-01	0.04306
1998-01-01	0.21556
1998-04-01	0.44220
1998-07-01	0.07055
1998-10-01	0.06091
1999-01-01	0.17975
1999-04-01	0.13092
1999-07-01	0.09698
1999-10-01	0.16621
2000-01-01	1.11196
2000-04-01	0.44582
2000-07-01	0.19303
2000-10-01	-0.44148
2001-01-01	0.79933
2001-04-01	-0.20086
2001-07-01	0.11989
2001-10-01	0.17321
2002-01-01	0.32100
2002-04-01	0.05104
2002-07-01	0.43127
2002-10-01	0.23839
2003-01-01	-0.57600
2003-04-01	-0.02997
2003-07-01	0.04886
2003-10-01	0.48202
2004-01-01	-0.05639
2004-04-01	-0.13096
2004-07-01	0.26792
2004-10-01	-0.15489
2005-01-01	-0.33737
2005-04-01	0.00165
2005-07-01	0.09739
2005-10-01	-0.09118
2006-01-01	-0.13230
2006-04-01	-0.14928
2006-07-01	0.02616
2006-10-01	-0.08382
2007-01-01	1.29904
2007-04-01	0.40939
2007-07-01	3.15428
2007-10-01	-0.11671
2008-01-01	3.44523
2008-04-01	-0.03823
2008-07-01	-0.16586
2008-10-01	-0.18185
2009-01-01	-0.50839
2009-04-01	-0.26262
2009-07-01	0.41849
2009-10-01	-0.19337
2010-01-01	-0.44240
2010-04-01	0.02280
2010-07-01	0.62496
2010-10-01	-0.09240
2011-01-01	-0.99360
2011-04-01	-0.03009
2011-07-01	0.05635
2011-10-01	-0.36415
2012-01-01	-0.09198
2012-04-01	-0.11477
2012-07-01	-0.03042
2012-10-01	0.26167
2013-01-01	-0.05646
2013-04-01	-0.02522
2013-07-01	-0.10298
2013-10-01	-0.11909
2014-01-01	-0.22631
2014-04-01	0.49839
2014-07-01	-0.12300
2014-10-01	0.05439
2015-01-01	-2.38984
2015-04-01	1.59074