Quarter	Billions of US Dollars
1996-10-01	0.25013
1997-01-01	1.17853
1997-04-01	-0.14732
1997-07-01	1.08798
1997-10-01	0.00000
1998-04-01	0.10005
1998-07-01	0.18009
1998-10-01	-0.25013
1999-10-01	-0.01716
2000-01-01	-0.33160
2000-04-01	-0.01505
2000-07-01	0.10000
2000-10-01	0.10005
2001-01-01	-0.48130
2001-04-01	0.77361
2002-01-01	-2.09231
2003-07-01	-0.01094
2004-04-01	-0.03563
2004-07-01	-0.04839
2005-04-01	-0.18669
2005-07-01	-0.02486
2006-01-01	0.16815
2006-04-01	0.08231
2006-10-01	0.00121
2007-01-01	-0.07533
2007-04-01	0.24687
2007-07-01	-0.01060
2007-10-01	-0.00336
2008-07-01	-0.15724
2009-01-01	0.11343
2009-10-01	0.00000
2010-04-01	-0.11594
2010-07-01	0.02575
2011-01-01	-0.15090
2011-07-01	0.01447
2011-10-01	0.02962
2012-01-01	-0.07235
2012-04-01	-0.04561
2013-04-01	-0.03685
2013-07-01	-0.00822
2014-01-01	0.00207
2014-07-01	-0.01094
2014-10-01	-0.01454
2015-01-01	0.23445