Quarter	Billions of US Dollars
1993-04-01	0.07100
1993-07-01	1.45902
1993-10-01	0.30534
1994-01-01	0.48201
1994-04-01	0.37542
1994-07-01	0.75059
1994-10-01	-0.18563
1995-01-01	0.92727
1995-04-01	0.35912
1995-07-01	0.10470
1995-10-01	1.33460
1996-01-01	0.06823
1996-04-01	0.37410
1996-07-01	0.02622
1996-10-01	1.06093
1997-01-01	0.31035
1997-04-01	0.68351
1997-07-01	-0.33375
1997-10-01	0.13188
1998-01-01	-0.29968
1998-04-01	-0.47321
1998-07-01	-0.63794
1998-10-01	0.38797
1999-01-01	-0.07485
1999-04-01	-0.79284
1999-07-01	-0.83862
1999-10-01	-0.23499
2000-01-01	0.73254
2000-04-01	-0.65292
2000-07-01	1.00401
2000-10-01	-0.34551
2001-01-01	1.51711
2001-04-01	0.43961
2001-07-01	1.15548
2001-10-01	0.74603
2002-01-01	-0.04474
2002-04-01	-0.01026
2002-07-01	1.21950
2002-10-01	1.52967
2003-01-01	1.85434
2003-04-01	0.03398
2003-07-01	-0.23070
2003-10-01	1.72471
2004-01-01	-1.96116
2004-04-01	-2.76666
2004-07-01	0.03097
2004-10-01	-2.74929
2005-01-01	0.31701
2005-04-01	2.17629
2005-07-01	0.45409
2005-10-01	-0.96305
2006-01-01	0.13596
2006-04-01	1.17714
2006-07-01	0.65170
2006-10-01	0.54159
2007-01-01	0.61141
2007-04-01	1.13788
2007-07-01	0.92375
2007-10-01	-0.03479
2008-01-01	-0.99776
2008-04-01	-0.43877
2008-07-01	2.42089
2008-10-01	-2.87455
2009-01-01	-0.22021
2009-04-01	-4.11983
2009-07-01	1.35254
2009-10-01	-1.31352
2010-01-01	-1.06293
2010-04-01	-0.03980
2010-07-01	-1.93594
2010-10-01	-1.44749
2011-01-01	-1.66388
2011-04-01	1.37848
2011-07-01	-2.31097
2011-10-01	1.24384
2012-01-01	3.18754
2012-04-01	-3.46286
2012-07-01	-1.30265
2012-10-01	-1.11194
2013-01-01	-1.56473
2013-04-01	0.02336
2013-07-01	-0.59194
2013-10-01	-0.83470
2014-01-01	-1.06612
2014-04-01	-0.38508
2014-07-01	-0.57582
2014-10-01	-0.41603
2015-01-01	-0.23110
2015-04-01	0.75707