Quarter	Billions of US Dollars
1993-07-01	0.2150
1993-10-01	9.8207
1994-01-01	0.3500
1994-04-01	-0.1306
1994-07-01	0.6784
1994-10-01	1.3767
1995-01-01	-0.1465
1995-04-01	1.9156
1995-07-01	1.7891
1995-10-01	1.9284
1996-01-01	2.3962
1996-04-01	2.9960
1996-07-01	1.1319
1996-10-01	3.1942
1997-01-01	4.3484
1997-04-01	0.9340
1997-07-01	3.9349
1997-10-01	0.7771
1998-01-01	2.5396
1998-04-01	3.7611
1998-07-01	2.4985
1998-10-01	-5.8664
1999-01-01	1.8195
1999-04-01	3.6454
1999-07-01	1.5424
1999-10-01	3.2820
2000-01-01	4.7899
2000-04-01	3.4591
2000-07-01	2.3429
2000-10-01	-0.3331
2001-01-01	1.4585
2001-04-01	5.4831
2001-07-01	-0.4880
2001-10-01	0.0930
2002-01-01	-0.0094
2002-04-01	-0.0031
2002-07-01	-0.0063
2003-01-01	-0.4137
2003-07-01	-0.1124
2004-01-01	0.0000
2004-04-01	-2.1962
2004-07-01	-0.7019
2004-10-01	0.0000
2005-01-01	-0.2235
2005-04-01	-29.7946
2005-07-01	-0.0766
2005-10-01	-0.3411
2006-04-01	-0.4588
2006-07-01	-0.1911
2006-10-01	0.1008
2007-01-01	-0.4444
2007-04-01	-0.0449
2007-07-01	-0.4785
2007-10-01	-0.3007
2008-01-01	-1.4036
2008-04-01	-0.6038
2008-07-01	-0.1988
2008-10-01	-6.3732
2009-01-01	-0.3446
2009-04-01	-0.7742
2009-10-01	-0.2656
2010-01-01	-0.2890
2010-04-01	1.2358
2010-07-01	0.1765
2010-10-01	0.5197
2011-01-01	0.7500
2011-04-01	-0.3598
2011-07-01	-0.6427
2011-10-01	0.0850
2012-01-01	-0.1198
2012-07-01	0.1079
2012-10-01	-0.0850
2013-01-01	0.0001
2014-04-01	-0.0420
2014-07-01	-0.0716
2014-10-01	-0.5491
2015-01-01	1.0366
2015-04-01	-0.7262