Quarter	Billions of US Dollars
1993-10-01	0.06314
1994-01-01	0.03525
1994-07-01	0.03191
1995-04-01	-0.00293
1995-07-01	-0.00327
1995-10-01	-0.00246
1996-01-01	-0.01108
1996-07-01	-0.00477
1996-10-01	-0.01089
1997-04-01	-0.00456
1998-04-01	0.01156
1999-01-01	-0.01204
1999-04-01	0.10582
1999-10-01	0.00053
2000-01-01	0.10630
2002-04-01	-0.11689
2002-10-01	0.19501
2003-01-01	-0.09248
2004-01-01	0.00911
2004-04-01	0.27100
2004-07-01	0.06986
2005-01-01	-0.03578
2005-04-01	0.57123
2005-07-01	1.00232
2005-10-01	1.60307
2006-01-01	2.34051
2006-04-01	0.54763
2006-07-01	0.77550
2006-10-01	2.68120
2007-01-01	2.28463
2007-04-01	2.50116
2007-07-01	2.19672
2007-10-01	1.48589
2008-01-01	1.28765
2008-04-01	1.50592
2008-07-01	0.99439
2008-10-01	-0.39045
2009-01-01	-0.36270
2009-04-01	-1.22087
2009-07-01	-0.14622
2009-10-01	-0.13053
2010-01-01	0.42869
2010-04-01	0.87643
2010-07-01	0.54781
2010-10-01	0.25216
2011-01-01	-0.32986
2011-04-01	0.64551
2011-07-01	0.51173
2011-10-01	1.77227
2012-01-01	0.55662
2012-04-01	-0.04276
2012-07-01	-0.54740
2012-10-01	2.50601
2013-01-01	2.22174
2013-04-01	4.00801
2013-07-01	2.00354
2013-10-01	1.47362
2014-01-01	-0.05153
2014-04-01	0.40657
2014-07-01	1.93679
2014-10-01	-0.20963
2015-01-01	0.69641
2015-04-01	0.91738