Quarter	Billions of US Dollars
1993-07-01	5.8693
1993-10-01	0.0285
1994-01-01	1.4805
1994-04-01	0.2593
1994-07-01	0.4701
1994-10-01	-1.3872
1995-01-01	-4.6169
1995-04-01	1.0463
1995-07-01	2.8376
1995-10-01	1.4246
1996-01-01	2.4419
1996-04-01	3.3663
1996-07-01	-2.0718
1996-10-01	1.3330
1997-01-01	-0.3419
1997-04-01	-0.9428
1997-07-01	0.6781
1997-10-01	-4.0886
1998-01-01	1.8094
1998-04-01	0.3292
1998-07-01	-3.3956
1998-10-01	-2.7452
1999-01-01	-1.4102
1999-04-01	0.5252
1999-07-01	-0.2364
1999-10-01	0.4592
2000-01-01	0.9531
2000-04-01	-0.1616
2000-07-01	0.6264
2000-10-01	1.3577
2001-01-01	-1.0826
2001-04-01	0.0953
2001-07-01	-3.7388
2001-10-01	-0.4432
2002-01-01	-0.6682
2002-04-01	-0.0332
2002-07-01	1.0783
2002-10-01	0.4331
2003-01-01	2.4750
2003-04-01	-0.3139
2003-07-01	0.5171
2003-10-01	-0.6469
2004-01-01	-0.9357
2004-04-01	-0.6819
2004-07-01	-0.1029
2004-10-01	1.1761
2005-01-01	0.0509
2005-04-01	0.8074
2005-07-01	-0.9740
2005-10-01	1.2092
2006-01-01	2.6254
2006-04-01	1.1515
2006-07-01	2.4665
2006-10-01	0.5080
2007-01-01	3.8780
2007-04-01	1.3932
2007-07-01	-2.1870
2007-10-01	0.5488
2008-01-01	3.0714
2008-04-01	2.1783
2008-07-01	1.1087
2008-10-01	-10.1262
2009-01-01	-0.8082
2009-04-01	1.3737
2009-07-01	1.8403
2009-10-01	-1.6058
2010-01-01	-0.3059
2010-04-01	0.1565
2010-07-01	-0.1126
2010-10-01	-1.5597
2011-01-01	1.2860
2011-04-01	4.3520
2011-07-01	2.4867
2011-10-01	3.9013
2012-01-01	15.4246
2012-04-01	6.7733
2012-07-01	2.2594
2012-10-01	6.2666
2013-01-01	10.8003
2013-04-01	7.4112
2013-07-01	9.2930
2013-10-01	5.9036
2014-01-01	14.6941
2014-04-01	13.5630
2014-07-01	5.0163
2014-10-01	-0.3679
2015-01-01	0.0289
2015-04-01	-0.8519