Quarter	Billions of US Dollars
1993-07-01	0.04559
1993-10-01	-0.09418
1994-10-01	0.03130
1995-01-01	0.36330
1995-04-01	-0.00348
1995-07-01	0.15610
1995-10-01	0.05451
1996-04-01	1.06746
1996-07-01	0.30756
1996-10-01	0.19704
1997-01-01	-0.07462
1997-07-01	0.06709
1997-10-01	0.09387
1998-01-01	-0.03998
1998-04-01	0.06626
1998-07-01	-0.07403
1998-10-01	-0.00630
1999-01-01	-0.00858
1999-04-01	-0.06754
1999-07-01	-0.00650
1999-10-01	-0.00556
2000-01-01	0.10023
2000-04-01	-0.04628
2000-07-01	-0.04483
2000-10-01	-0.09693
2001-04-01	0.55609
2001-07-01	0.31159
2001-10-01	0.05257
2002-01-01	-0.13601
2002-04-01	0.33334
2002-07-01	0.14586
2002-10-01	-0.34484
2003-01-01	-0.04547
2003-04-01	-0.20040
2003-07-01	0.15793
2003-10-01	0.84631
2004-04-01	1.28725
2004-07-01	-0.10481
2004-10-01	-0.03310
2005-01-01	0.23666
2005-04-01	-0.70598
2005-07-01	-0.00036
2005-10-01	-0.04716
2006-01-01	0.78271
2006-04-01	-0.93245
2006-07-01	-0.37295
2006-10-01	0.04217
2007-01-01	-0.01225
2007-04-01	-0.00051
2007-07-01	-0.01062
2007-10-01	0.00156
2008-01-01	-0.22102
2008-04-01	2.07040
2008-07-01	-0.09092
2008-10-01	-0.53190
2009-01-01	1.72405
2009-04-01	8.36687
2009-07-01	0.99824
2009-10-01	1.30026
2010-01-01	1.01448
2010-04-01	0.41950
2010-07-01	2.59646
2010-10-01	1.26499
2011-01-01	3.59728
2011-04-01	0.96830
2011-07-01	-0.71714
2011-10-01	-0.08274
2012-01-01	3.85477
2012-04-01	0.17466
2012-07-01	1.12260
2012-10-01	0.94552
2013-01-01	2.28633
2013-04-01	-0.87743
2013-07-01	0.67515
2013-10-01	1.24131
2014-01-01	0.94170
2014-04-01	-2.55913
2014-07-01	1.11224
2014-10-01	-0.73779
2015-01-01	1.35823
2015-04-01	2.62865