Quarter	Billions of US Dollars
1987-01-01	0.1140
1987-04-01	0.1696
1987-10-01	-0.0250
1988-01-01	0.1805
1988-07-01	0.1496
1989-01-01	0.4865
1989-04-01	0.1527
1989-10-01	0.3000
1990-07-01	0.5375
1991-01-01	0.6859
1991-04-01	0.3454
1991-07-01	-0.0474
1991-10-01	0.3383
1992-01-01	0.5469
1992-04-01	0.4969
1992-07-01	0.4065
1992-10-01	0.6129
1993-01-01	1.0587
1993-04-01	0.7606
1993-07-01	0.1788
1993-10-01	1.4345
1994-01-01	-0.3018
1994-04-01	-0.0123
1994-07-01	-0.0762
1995-04-01	-0.4656
1995-07-01	-0.2011
1995-10-01	-0.3942
1996-01-01	-0.3521
1996-04-01	-0.5482
1996-10-01	-0.3000
1997-01-01	-0.1790
1997-04-01	-0.5478
1997-07-01	-0.9327
1997-10-01	-0.4233
1998-04-01	-0.5575
1998-07-01	-0.4823
1998-10-01	-1.0007
1999-01-01	-0.8383
1999-04-01	-0.1654
1999-10-01	0.1817
2000-01-01	-0.6538
2000-10-01	-0.4553
2003-01-01	-0.8416
2003-04-01	-0.1618
2003-07-01	0.3999
2003-10-01	0.0119
2004-01-01	0.9128
2004-04-01	0.0120
2004-07-01	0.0128
2004-10-01	0.4468
2005-01-01	0.1634
2005-07-01	-0.7386
2005-10-01	-0.5116
2006-10-01	0.7052
2007-01-01	0.2359
2007-04-01	0.0200
2007-07-01	-0.0128
2008-04-01	0.6250
2008-07-01	-0.0300
2008-10-01	3.9361
2009-01-01	1.2953
2009-04-01	2.1143
2009-07-01	-0.6230
2009-10-01	-0.4595
2010-01-01	3.3776
2010-04-01	43.2687
2010-07-01	7.6300
2010-10-01	27.7152
2011-01-01	4.3726
2011-04-01	12.6695
2011-07-01	-1.8342
2011-10-01	12.4538
2012-01-01	3.6713
2012-04-01	-7.6418
2012-07-01	-10.1158
2012-10-01	-1.9459
2013-01-01	-3.0944
2013-04-01	-4.0117
2013-07-01	-5.7401
2013-10-01	-0.3879
2014-01-01	0.0479
2014-04-01	-6.8929
2014-07-01	-3.5946
2014-10-01	2.8903
2015-01-01	-1.6516
2015-04-01	7.3943