Quarter	Billions of US Dollars
1993-07-01	1.3326
1993-10-01	0.0934
1994-01-01	-0.2240
1994-04-01	0.6770
1994-07-01	0.5257
1994-10-01	-0.9692
1995-01-01	-0.1433
1995-04-01	0.5392
1995-07-01	-0.7377
1995-10-01	-0.4330
1996-01-01	0.3074
1996-04-01	0.3714
1996-07-01	0.9335
1996-10-01	0.4693
1997-01-01	-0.4044
1997-04-01	0.0221
1997-07-01	2.2874
1997-10-01	-0.0309
1998-01-01	-0.1313
1998-04-01	1.1981
1998-07-01	0.0434
1998-10-01	2.8021
1999-01-01	-0.7176
1999-04-01	3.3002
1999-07-01	1.5541
1999-10-01	0.0106
2000-01-01	-1.1253
2000-04-01	10.7148
2000-07-01	5.0358
2000-10-01	11.1623
2001-01-01	-1.1480
2001-04-01	1.4690
2001-07-01	2.6118
2001-10-01	1.0003
2002-01-01	-2.0414
2002-04-01	-1.9539
2002-07-01	-1.3903
2002-10-01	-2.4598
2003-01-01	-1.8781
2003-04-01	2.9103
2003-07-01	-3.9424
2003-10-01	3.3530
2004-01-01	-1.7573
2004-04-01	-2.6290
2004-07-01	-2.9053
2004-10-01	-0.2817
2005-01-01	-2.4787
2005-04-01	1.7931
2005-07-01	1.1606
2005-10-01	-0.4219
2006-01-01	0.7731
2006-04-01	-1.0056
2006-07-01	-0.3071
2006-10-01	4.0167
2007-01-01	-0.3053
2007-04-01	1.4049
2007-07-01	-5.2134
2007-10-01	3.9277
2008-01-01	2.9260
2008-04-01	-0.6907
2008-07-01	1.2574
2008-10-01	2.7477
2009-01-01	5.0710
2009-04-01	-0.3146
2009-07-01	1.0362
2009-10-01	3.1191
2010-01-01	-0.4277
2010-04-01	1.7893
2010-07-01	3.7410
2010-10-01	3.7675
2011-01-01	0.7012
2011-04-01	1.5459
2011-07-01	13.7531
2011-10-01	4.7646
2012-01-01	4.4653
2012-04-01	5.3758
2012-07-01	4.0728
2012-10-01	2.9280
2013-01-01	3.9884
2013-04-01	5.5336
2013-07-01	0.5672
2013-10-01	-2.4713
2014-01-01	-2.0381
2014-04-01	-1.7810
2014-07-01	-3.0979
2014-10-01	-0.7315
2015-01-01	0.1684
2015-04-01	0.9523