Quarter	Billions of US Dollars
1993-07-01	4.9803
1993-10-01	0.1460
1994-01-01	0.8116
1994-04-01	-0.4547
1994-07-01	0.1900
1994-10-01	0.8967
1995-01-01	-2.3080
1995-04-01	0.0763
1995-07-01	0.1084
1995-10-01	-0.4356
1996-01-01	0.0753
1996-04-01	4.8903
1996-07-01	-5.5204
1996-10-01	1.2507
1997-01-01	-1.0514
1997-04-01	1.2882
1997-07-01	0.0625
1997-10-01	-0.3534
1998-01-01	-0.6510
1998-04-01	2.6200
1998-07-01	0.3743
1998-10-01	-0.0073
1999-01-01	-0.3942
1999-04-01	0.8202
1999-07-01	0.9024
1999-10-01	-1.3838
2000-01-01	2.8973
2000-04-01	-1.1206
2000-07-01	1.8402
2000-10-01	2.6352
2001-01-01	-1.3506
2001-04-01	-1.0055
2001-07-01	-1.8312
2001-10-01	-2.1553
2002-01-01	0.0864
2002-04-01	0.0147
2002-07-01	1.2990
2002-10-01	-2.1074
2003-01-01	0.7174
2003-04-01	-1.1403
2003-07-01	-0.6586
2003-10-01	-0.3804
2004-01-01	3.4205
2004-04-01	-1.1220
2004-07-01	1.5908
2004-10-01	-1.5118
2005-01-01	1.6002
2005-04-01	6.6039
2005-07-01	-1.4546
2005-10-01	-0.8617
2006-01-01	1.4457
2006-04-01	-1.0373
2006-07-01	-0.4375
2006-10-01	1.2988
2007-01-01	2.4886
2007-04-01	2.5094
2007-07-01	0.4296
2007-10-01	7.7466
2008-01-01	3.0726
2008-04-01	4.2238
2008-07-01	9.0142
2008-10-01	-9.0671
2009-01-01	2.5173
2009-04-01	2.6320
2009-07-01	1.7835
2009-10-01	-2.2966
2010-01-01	5.5738
2010-04-01	-3.0482
2010-07-01	-5.1997
2010-10-01	1.6419
2011-01-01	-5.9494
2011-04-01	0.6331
2011-07-01	7.3542
2011-10-01	3.6697
2012-01-01	-0.4946
2012-04-01	-0.9115
2012-07-01	-1.2186
2012-10-01	5.3121
2013-01-01	3.6587
2013-04-01	-9.2696
2013-07-01	5.0825
2013-10-01	-8.7255
2014-01-01	-3.0764
2014-04-01	9.5117
2014-07-01	0.5003
2014-10-01	6.0775
2015-01-01	-11.3813
2015-04-01	-3.1741