Quarter	Billions of US Dollars
1993-07-01	5.28385
1993-10-01	0.02640
1994-01-01	1.32299
1994-04-01	0.26116
1994-07-01	0.51633
1994-10-01	-1.38015
1995-01-01	-4.62141
1995-04-01	0.37473
1995-07-01	2.07958
1995-10-01	0.79457
1996-01-01	2.45485
1996-04-01	2.93538
1996-07-01	-3.88503
1996-10-01	-0.05263
1997-01-01	-0.12190
1997-04-01	-0.46342
1997-07-01	1.52599
1997-10-01	-1.95760
1998-01-01	2.26355
1998-04-01	0.00075
1998-07-01	-2.66473
1998-10-01	-2.41608
1999-01-01	-1.47313
1999-04-01	0.55765
1999-07-01	-0.25706
1999-10-01	0.32799
2000-01-01	0.74108
2000-04-01	-1.01732
2000-07-01	0.38729
2000-10-01	1.10564
2001-01-01	-0.08288
2001-04-01	-0.07823
2001-07-01	-3.16124
2001-10-01	-0.24101
2002-01-01	-0.30510
2002-04-01	-0.38353
2002-07-01	-0.16244
2002-10-01	0.47374
2003-01-01	2.12904
2003-04-01	-0.09182
2003-07-01	0.41400
2003-10-01	-1.00302
2004-01-01	-1.03892
2004-04-01	-0.58589
2004-07-01	-0.50004
2004-10-01	0.64921
2005-01-01	-0.29634
2005-04-01	0.11222
2005-07-01	-0.16596
2005-10-01	-0.01880
2006-01-01	0.21423
2006-04-01	0.66484
2006-07-01	-0.40818
2006-10-01	-0.31564
2007-01-01	2.31693
2007-04-01	0.80970
2007-07-01	-2.41325
2007-10-01	1.32617
2008-01-01	0.19685
2008-04-01	1.00660
2008-07-01	0.74129
2008-10-01	-0.62722
2009-01-01	-0.55947
2009-04-01	-1.15858
2009-07-01	-0.03237
2009-10-01	-0.47906
2010-01-01	0.14493
2010-04-01	0.41284
2010-07-01	0.15634
2010-10-01	-0.17780
2011-01-01	-0.21707
2011-04-01	0.88993
2011-07-01	0.44334
2011-10-01	0.56335
2012-01-01	2.51109
2012-04-01	3.18606
2012-07-01	0.60554
2012-10-01	1.98204
2013-01-01	1.54807
2013-04-01	-0.42091
2013-07-01	-1.24983
2013-10-01	-1.81268
2014-01-01	0.59028
2014-04-01	0.60367
2014-07-01	-2.14276
2014-10-01	-0.07089
2015-01-01	-1.32570
2015-04-01	0.62811