Quarter	Billions of US Dollars
1993-07-01	1.14316
1993-10-01	0.00378
1994-01-01	1.42394
1994-04-01	0.38830
1994-07-01	0.53200
1994-10-01	0.55102
1995-07-01	0.14453
1995-10-01	0.05290
1996-01-01	0.02812
1996-04-01	2.30109
1996-07-01	1.90335
1996-10-01	2.49957
1997-01-01	0.23864
1997-04-01	1.31894
1997-07-01	2.25314
1997-10-01	-0.39924
1998-01-01	0.44227
1998-04-01	-0.70721
1998-07-01	-0.78653
1998-10-01	0.18308
1999-01-01	0.80729
1999-04-01	-0.04598
1999-07-01	0.35824
1999-10-01	-0.43912
2000-01-01	-0.48592
2000-04-01	0.55203
2000-07-01	-1.06604
2000-10-01	0.94146
2001-01-01	-0.17819
2001-04-01	-0.02599
2001-07-01	-0.04660
2001-10-01	0.12528
2002-01-01	-1.88103
2002-04-01	3.80095
2002-07-01	-0.04824
2002-10-01	0.24479
2003-01-01	3.04007
2003-04-01	0.41433
2003-07-01	0.51435
2003-10-01	6.61320
2004-01-01	3.47543
2004-04-01	4.61521
2004-07-01	2.15238
2004-10-01	1.54533
2005-01-01	-0.45786
2005-04-01	0.34124
2005-07-01	-2.28550
2005-10-01	0.76594
2006-01-01	-0.53294
2006-04-01	4.58556
2006-07-01	0.10131
2006-10-01	4.40144
2007-01-01	-0.66285
2007-04-01	0.28662
2007-07-01	1.21969
2007-10-01	-0.69472
2008-01-01	0.91022
2008-04-01	2.17122
2008-07-01	1.05103
2008-10-01	-4.11929
2009-01-01	-2.62193
2009-04-01	-5.42252
2009-07-01	-1.75155
2009-10-01	-0.18920
2010-01-01	-2.27276
2010-04-01	-1.74915
2010-07-01	1.46990
2010-10-01	-1.24438
2011-01-01	-4.10495
2011-04-01	-6.62849
2011-07-01	-3.61270
2011-10-01	-0.43037
2012-01-01	0.21782
2012-04-01	-0.03982
2012-07-01	-0.36858
2012-10-01	1.42911
2013-01-01	-2.28102
2013-04-01	-0.14477
2013-07-01	2.47255
2013-10-01	2.72188
2014-01-01	-0.13199
2014-04-01	3.70130
2014-07-01	0.39244
2014-10-01	2.16808
2015-01-01	-0.71731
2015-04-01	1.42964