Quarter	Billions of US Dollars
1993-07-01	6.4037
1993-10-01	-0.1272
1994-01-01	0.3606
1994-04-01	-0.2645
1994-07-01	0.1768
1994-10-01	0.4942
1995-01-01	-2.5738
1995-04-01	0.1529
1995-07-01	0.3748
1995-10-01	-0.2824
1996-01-01	-0.3018
1996-04-01	4.7523
1996-07-01	-5.2734
1996-10-01	1.3415
1997-01-01	-1.2504
1997-04-01	1.1042
1997-07-01	0.1588
1997-10-01	-0.1034
1998-01-01	-0.8418
1998-04-01	2.8975
1998-07-01	0.5719
1998-10-01	0.1501
1999-01-01	0.7132
1999-04-01	0.4248
1999-07-01	2.7479
1999-10-01	-2.0345
2000-01-01	1.9027
2000-04-01	-0.7894
2000-07-01	0.9992
2000-10-01	4.4786
2001-01-01	-1.8779
2001-04-01	-0.9253
2001-07-01	-1.8012
2001-10-01	-1.4267
2002-01-01	-0.7540
2002-04-01	-0.9965
2002-07-01	1.7123
2002-10-01	-0.4196
2003-01-01	0.0381
2003-04-01	-2.5800
2003-07-01	-1.0015
2003-10-01	0.2465
2004-01-01	3.2368
2004-04-01	0.0850
2004-07-01	0.8759
2004-10-01	1.0187
2005-01-01	0.6196
2005-04-01	5.6747
2005-07-01	-0.9642
2005-10-01	-0.1813
2006-01-01	1.8119
2006-04-01	-0.9931
2006-07-01	-1.2476
2006-10-01	0.0059
2007-01-01	2.9213
2007-04-01	3.8853
2007-07-01	-0.7635
2007-10-01	6.6557
2008-01-01	1.8474
2008-04-01	6.1439
2008-07-01	10.3415
2008-10-01	-10.2672
2009-01-01	3.3451
2009-04-01	2.7359
2009-07-01	1.8721
2009-10-01	-3.0044
2010-01-01	6.9432
2010-04-01	-2.9587
2010-07-01	-1.7698
2010-10-01	1.3266
2011-01-01	-8.8137
2011-04-01	1.6336
2011-07-01	11.1340
2011-10-01	3.0148
2012-01-01	-2.6937
2012-04-01	1.8809
2012-07-01	1.0974
2012-10-01	-0.1067
2013-01-01	4.2866
2013-04-01	-8.0303
2013-07-01	1.8806
2013-10-01	-10.8076
2014-01-01	-4.4633
2014-04-01	9.9901
2014-07-01	0.3754
2014-10-01	6.8025
2015-01-01	-11.7601
2015-04-01	-2.7464