Quarter	Billions of US Dollars
1989-10-01	0.00400
1990-01-01	0.00600
1990-04-01	0.01800
1990-07-01	-0.03600
1990-10-01	-0.00700
1991-01-01	-0.00100
1991-04-01	0.10800
1991-07-01	0.01900
1991-10-01	-0.04500
1992-01-01	0.85100
1992-04-01	-0.82400
1992-07-01	-0.06300
1992-10-01	0.07400
1993-01-01	0.09700
1993-04-01	0.03600
1993-07-01	0.47381
1993-10-01	-0.12537
1994-01-01	0.09692
1994-04-01	-0.21666
1994-07-01	-0.00036
1994-10-01	-0.07896
1995-01-01	-0.00888
1995-04-01	0.00984
1995-07-01	0.04685
1995-10-01	0.00184
1996-01-01	-0.06723
1996-04-01	0.20092
1996-07-01	-0.11724
1996-10-01	0.06177
1997-01-01	-0.05447
1997-04-01	0.02381
1997-07-01	0.08161
1997-10-01	0.00553
1998-01-01	-0.06117
1998-04-01	0.05938
1998-07-01	0.01037
1998-10-01	0.12613
1999-01-01	0.05127
1999-04-01	-0.14875
1999-07-01	0.01437
1999-10-01	0.09857
2000-01-01	-0.01353
2000-04-01	-0.12341
2000-07-01	0.03136
2000-10-01	-0.02457
2001-01-01	0.01316
2001-04-01	0.11867
2001-07-01	-0.05244
2001-10-01	-0.01328
2002-01-01	0.00351
2002-04-01	-0.02352
2002-07-01	0.03704
2002-10-01	-0.01048
2003-01-01	0.27160
2003-04-01	-0.04952
2003-07-01	-0.16410
2003-10-01	0.15310
2004-01-01	-0.07305
2004-04-01	0.19921
2004-07-01	0.87065
2004-10-01	-0.14411
2005-01-01	-0.49140
2005-04-01	-0.19264
2005-07-01	0.00333
2005-10-01	0.11883
2006-01-01	0.35716
2006-04-01	-0.72040
2006-07-01	0.15283
2006-10-01	0.36272
2007-01-01	-0.43727
2007-04-01	-0.20806
2007-07-01	0.18467
2007-10-01	0.26944
2008-01-01	0.69122
2008-04-01	-0.15170
2008-07-01	-0.98817
2008-10-01	-0.10218
2009-01-01	-0.04478
2009-04-01	0.01872
2009-07-01	0.04187
2009-10-01	0.02059
2010-01-01	0.53317
2010-04-01	-0.23279
2010-07-01	0.07601
2010-10-01	0.20146
2011-01-01	-0.00135
2011-04-01	-0.44218
2011-07-01	0.18619
2011-10-01	-0.07367
2012-01-01	-0.02292
2012-04-01	0.05020
2012-07-01	0.15739
2012-10-01	0.33335
2013-01-01	-0.51208
2013-04-01	-0.02123
2013-07-01	-0.05208
2013-10-01	-0.10157
2014-01-01	3.06467
2014-04-01	2.07659
2014-07-01	2.09708
2014-10-01	0.58571
2015-01-01	-2.86086
2015-04-01	-1.45003