Quarter	Billions of US Dollars
1993-07-01	0.5266
1993-10-01	-0.0074
1994-01-01	-0.0787
1994-04-01	-0.0569
1994-07-01	-0.1667
1994-10-01	0.1606
1995-01-01	-0.3150
1995-04-01	-0.0513
1995-07-01	-0.1295
1995-10-01	0.2171
1996-01-01	-0.1597
1996-04-01	0.3834
1996-07-01	-0.5938
1996-10-01	0.3348
1997-01-01	-0.1726
1997-04-01	-0.2942
1997-07-01	-0.1316
1997-10-01	0.4048
1998-01-01	-0.7531
1998-04-01	0.6297
1998-07-01	0.0294
1998-10-01	1.5835
1999-01-01	-0.5675
1999-04-01	0.3055
1999-07-01	0.1060
1999-10-01	2.3339
2000-01-01	0.6593
2000-04-01	1.3572
2000-07-01	1.1516
2000-10-01	0.5404
2001-01-01	2.2846
2001-04-01	5.8502
2001-07-01	-0.2532
2001-10-01	0.8418
2002-01-01	1.9784
2002-04-01	0.2137
2002-07-01	0.6332
2002-10-01	0.4322
2003-01-01	-0.6261
2003-04-01	3.2704
2003-07-01	1.7008
2003-10-01	1.8007
2004-01-01	3.5574
2004-04-01	9.2450
2004-07-01	1.0201
2004-10-01	4.7359
2005-01-01	1.4718
2005-04-01	-0.9588
2005-07-01	-3.0881
2005-10-01	-5.9795
2006-01-01	-0.1510
2006-04-01	0.2105
2006-07-01	-0.4194
2006-10-01	3.5699
2007-01-01	-2.4241
2007-04-01	9.3730
2007-07-01	-0.1374
2007-10-01	2.2628
2008-01-01	-0.2248
2008-04-01	-0.3905
2008-07-01	-0.7765
2008-10-01	-0.8612
2009-01-01	4.4131
2009-04-01	3.0087
2009-07-01	2.8810
2009-10-01	4.7354
2010-01-01	8.6151
2010-04-01	0.0940
2010-07-01	2.4200
2010-10-01	4.5424
2011-01-01	3.1292
2011-04-01	-5.7570
2011-07-01	-1.9671
2011-10-01	0.4417
2012-01-01	3.2778
2012-04-01	2.8226
2012-07-01	7.4193
2012-10-01	8.1997
2013-01-01	3.3031
2013-04-01	4.6412
2013-07-01	13.3740
2013-10-01	12.7387
2014-01-01	2.7361
2014-04-01	-0.7935
2014-07-01	5.7929
2014-10-01	1.4790
2015-01-01	2.1401
2015-04-01	2.3694