Quarter	Billions of US Dollars
1987-01-01	-0.0080
1989-07-01	0.0294
1991-07-01	0.5750
1992-10-01	0.0367
1993-01-01	0.3000
1993-07-01	0.0326
1993-10-01	-0.0255
1994-01-01	0.2663
1994-04-01	0.0433
1994-07-01	0.0240
1994-10-01	-0.0002
1995-01-01	0.0019
1995-04-01	0.1131
1995-07-01	0.7433
1995-10-01	0.2210
1996-01-01	0.2660
1996-04-01	0.4969
1996-07-01	0.2765
1996-10-01	0.1577
1997-01-01	0.9635
1997-04-01	0.1963
1997-07-01	0.5898
1997-10-01	-0.0143
1998-01-01	0.3641
1998-04-01	2.0597
1998-07-01	-0.7075
1998-10-01	0.4677
1999-01-01	0.4913
1999-04-01	-0.0620
1999-07-01	0.0221
1999-10-01	0.5220
2000-01-01	-0.8474
2000-04-01	-0.1383
2000-07-01	0.4189
2000-10-01	-0.5905
2001-01-01	1.5017
2001-04-01	0.0089
2001-07-01	0.2274
2001-10-01	1.1172
2002-01-01	-0.3941
2002-04-01	0.2008
2002-07-01	-0.5338
2002-10-01	0.0006
2003-01-01	1.3671
2003-04-01	2.1902
2003-07-01	1.7944
2003-10-01	5.5349
2004-01-01	0.6715
2004-04-01	-0.0123
2004-07-01	0.3349
2004-10-01	0.4036
2005-01-01	0.1239
2005-04-01	-1.1989
2005-07-01	0.3901
2005-10-01	0.2140
2006-01-01	0.0911
2006-04-01	0.0075
2006-07-01	-0.0955
2006-10-01	1.4100
2007-01-01	0.8246
2007-04-01	1.5861
2007-07-01	-0.4536
2007-10-01	3.0264
2008-01-01	-2.5346
2008-04-01	1.0005
2008-07-01	-0.4048
2008-10-01	-0.0058
2009-01-01	-0.6480
2009-04-01	-0.9844
2009-07-01	0.1414
2009-10-01	-0.0718
2010-01-01	0.0724
2010-04-01	-1.2264
2010-07-01	4.9356
2010-10-01	0.8704
2011-01-01	1.9776
2011-04-01	3.4628
2011-07-01	0.4546
2011-10-01	-1.1133
2012-01-01	-0.3302
2012-04-01	8.9345
2012-07-01	2.9715
2012-10-01	2.6378
2013-01-01	-0.0028
2013-04-01	9.4621
2013-07-01	-0.6529
2013-10-01	8.2542
2014-01-01	1.8585
2014-04-01	12.1084
2014-07-01	6.6889
2014-10-01	9.2911
2015-01-01	9.3588
2015-04-01	23.3906