Quarter	Billions of US Dollars
1993-07-01	-0.01782
1993-10-01	0.23254
1994-01-01	0.24576
1994-04-01	-0.12959
1994-07-01	0.01758
1994-10-01	0.19769
1995-01-01	-0.01351
1995-04-01	0.21320
1995-07-01	-0.05917
1995-10-01	-0.35694
1996-01-01	-0.02519
1996-04-01	-0.07373
1996-07-01	-0.10847
1997-01-01	-0.04870
1997-04-01	-0.06088
1997-07-01	-0.06712
1997-10-01	-0.12478
1998-04-01	0.11542
1998-07-01	0.02880
1998-10-01	0.28316
1999-01-01	0.10167
1999-07-01	0.07330
2000-01-01	0.41258
2000-04-01	-0.02389
2000-07-01	-0.02929
2000-10-01	-0.00456
2001-01-01	-0.02363
2001-10-01	0.18658
2002-01-01	-0.01020
2002-04-01	0.22542
2002-10-01	-0.03399
2003-04-01	0.10568
2003-07-01	0.38789
2003-10-01	2.53327
2004-01-01	0.25406
2004-04-01	0.21669
2004-07-01	0.06109
2004-10-01	1.15172
2005-01-01	1.83198
2005-04-01	0.87176
2005-07-01	-0.29898
2005-10-01	2.94712
2006-01-01	0.31558
2006-04-01	0.33060
2006-07-01	-0.11642
2006-10-01	1.26285
2007-01-01	1.30074
2007-04-01	1.75258
2007-07-01	0.10307
2007-10-01	4.91017
2008-04-01	-0.42989
2008-07-01	-0.25755
2008-10-01	3.09879
2009-01-01	0.29981
2009-04-01	0.73911
2009-07-01	4.41931
2009-10-01	0.03097
2010-01-01	-0.42665
2010-04-01	2.25674
2010-07-01	1.30397
2010-10-01	0.55939
2011-01-01	0.84911
2011-04-01	1.11267
2011-07-01	1.69379
2011-10-01	1.01075
2012-01-01	0.41945
2012-04-01	1.82049
2012-07-01	1.87631
2012-10-01	-0.14942
2013-01-01	0.99744
2013-04-01	0.88189
2013-07-01	2.69404
2013-10-01	0.59194
2014-01-01	-2.75803
2014-04-01	0.34279
2014-07-01	-0.56203
2014-10-01	1.76628
2015-01-01	-0.22520
2015-04-01	-0.11048