Quarter	Billions of US Dollars
1993-07-01	0.24920
1993-10-01	0.09810
1994-01-01	0.11855
1994-04-01	-0.11425
1994-07-01	-0.09947
1994-10-01	0.03792
1995-01-01	-0.15016
1995-04-01	0.01378
1995-07-01	0.08932
1995-10-01	-0.03162
1996-01-01	0.07263
1996-04-01	-0.03009
1996-07-01	-0.02531
1996-10-01	-0.05200
1997-01-01	0.01340
1997-04-01	-0.02190
1997-07-01	0.09660
1997-10-01	-0.15295
1998-01-01	0.09180
1998-04-01	0.20367
1998-07-01	-0.03860
1998-10-01	0.02351
1999-01-01	-0.00236
1999-04-01	0.22333
1999-07-01	0.13447
1999-10-01	-0.26748
2000-01-01	-0.01207
2000-04-01	-0.02180
2000-07-01	0.00058
2000-10-01	-0.01512
2001-01-01	0.00752
2001-04-01	-0.03196
2001-07-01	-0.07163
2001-10-01	0.01234
2002-01-01	-0.01436
2002-04-01	0.01127
2002-07-01	-0.04560
2002-10-01	-0.09145
2003-01-01	-0.04544
2003-04-01	-0.02498
2003-07-01	0.00054
2003-10-01	-0.00058
2004-01-01	-0.00056
2004-04-01	-0.00038
2004-07-01	0.00124
2004-10-01	0.00502
2005-01-01	-0.00969
2005-04-01	-0.00124
2005-07-01	0.00339
2005-10-01	-0.01000
2006-04-01	-0.00500
2006-10-01	-0.12600
2009-01-01	-5.18114
2009-10-01	0.00001
2012-07-01	-5.01781
2013-01-01	0.00001
2015-04-01	-0.01250