Quarter	Billions of US Dollars
1994-07-01	0.25510
1995-10-01	0.06250
1996-10-01	0.28000
1998-01-01	0.20000
1998-04-01	0.86446
1998-07-01	0.08056
1998-10-01	0.20023
1999-01-01	0.00024
1999-04-01	0.41245
1999-07-01	-0.05516
1999-10-01	0.16073
2000-01-01	0.15895
2000-04-01	0.62259
2000-07-01	0.03364
2000-10-01	-0.05919
2001-04-01	0.09762
2001-07-01	-0.07963
2001-10-01	-0.08000
2002-04-01	0.14312
2002-10-01	-0.25541
2003-04-01	-0.30568
2003-07-01	-0.09315
2003-10-01	0.28686
2004-01-01	-0.00683
2004-04-01	0.84095
2004-10-01	-0.25881
2005-04-01	-0.94421
2005-10-01	-0.20000
2006-01-01	1.20195
2006-07-01	-0.15288
2006-10-01	-0.20000
2007-04-01	1.07851
2009-04-01	2.72044
2010-04-01	1.41295
2011-01-01	1.70311
2011-04-01	1.15672
2012-04-01	3.54964
2013-04-01	2.22014
2013-07-01	0.97096
2013-10-01	2.52786
2014-01-01	0.56203
2014-04-01	-0.32107
2014-10-01	-0.72070
2015-01-01	-1.03340