Quarter	Billions of US Dollars
1992-10-01	0.02500
1995-04-01	0.09000
1995-07-01	0.26000
1995-10-01	-0.00502
1996-01-01	0.07350
1996-04-01	0.40800
1996-07-01	0.49050
1996-10-01	0.75321
1997-01-01	0.23582
1997-04-01	-0.20045
1997-07-01	0.21083
1997-10-01	-0.08742
1998-01-01	-0.10000
1998-04-01	-0.00800
1998-07-01	-0.09200
1998-10-01	0.02800
1999-01-01	0.09161
1999-04-01	-0.18300
1999-07-01	-0.20800
1999-10-01	-0.29832
2000-01-01	0.65100
2000-04-01	-0.15000
2000-07-01	-0.25300
2000-10-01	1.21180
2001-01-01	-0.54680
2001-04-01	0.01500
2001-07-01	0.28400
2001-10-01	0.88500
2002-01-01	-0.36558
2002-04-01	1.02700
2002-07-01	0.64457
2002-10-01	0.62000
2003-04-01	0.25400
2003-07-01	0.07324
2003-10-01	0.12883
2004-01-01	0.07511
2004-04-01	0.47800
2004-07-01	-0.04916
2004-10-01	0.90583
2005-01-01	0.42287
2005-04-01	0.05815
2005-07-01	0.50966
2005-10-01	-0.09789
2006-01-01	1.27263
2006-04-01	0.28798
2006-07-01	0.53689
2006-10-01	1.28451
2007-01-01	0.41315
2007-04-01	1.98972
2007-07-01	0.72178
2007-10-01	-0.70152
2008-01-01	-0.17031
2008-04-01	2.65210
2008-07-01	-0.13052
2008-10-01	-0.84501
2009-01-01	-0.04364
2009-04-01	-0.66962
2009-07-01	1.53959
2009-10-01	-0.02305
2010-01-01	-0.65158
2010-04-01	-0.41381
2010-07-01	0.34483
2010-10-01	-0.83889
2011-01-01	1.65299
2011-04-01	-0.11408
2011-07-01	-0.13490
2011-10-01	-1.04909
2012-01-01	-0.15856
2012-04-01	0.61449
2012-07-01	-0.11427
2012-10-01	-0.00724
2013-01-01	0.70255
2013-04-01	0.00485
2013-07-01	0.12009
2013-10-01	0.50997
2014-01-01	0.74987
2014-04-01	-0.41001
2014-07-01	-0.46300
2014-10-01	1.20254
2015-01-01	-0.39214
2015-04-01	-0.74442