Quarter	Billions of US Dollars
1993-07-01	-1.03621
1993-10-01	-0.29822
1994-01-01	1.23489
1994-04-01	-0.58858
1994-07-01	0.52112
1994-10-01	-0.43200
1995-01-01	0.09000
1995-04-01	-0.53556
1995-07-01	0.05311
1995-10-01	0.10958
1996-01-01	0.53346
1996-04-01	0.23838
1996-07-01	1.69758
1996-10-01	0.95116
1997-01-01	0.03451
1997-04-01	1.15124
1997-07-01	0.09983
1997-10-01	1.17212
1998-01-01	0.01682
1998-04-01	4.57214
1998-07-01	-0.33980
1998-10-01	0.83041
1999-01-01	1.63504
1999-04-01	1.62214
1999-07-01	-0.56155
1999-10-01	1.22499
2000-01-01	0.66775
2000-04-01	0.34379
2000-07-01	0.49010
2000-10-01	0.78065
2001-01-01	-0.34748
2001-04-01	1.75773
2001-07-01	0.28624
2001-10-01	0.63140
2002-01-01	1.90763
2002-04-01	-0.78247
2002-07-01	2.73817
2002-10-01	-0.42761
2003-01-01	0.63902
2003-04-01	0.14254
2003-07-01	0.36934
2003-10-01	1.65586
2004-01-01	0.55321
2004-04-01	1.18321
2004-07-01	1.56229
2004-10-01	1.37149
2005-01-01	1.25599
2005-04-01	2.40922
2005-07-01	-0.43771
2005-10-01	1.87698
2006-01-01	4.79673
2006-04-01	-0.72451
2006-07-01	1.04836
2006-10-01	-1.05004
2007-01-01	2.48344
2007-04-01	-1.32606
2007-07-01	-0.48042
2007-10-01	-0.10004
2008-01-01	2.33753
2008-04-01	-1.27060
2008-07-01	-0.01261
2008-10-01	-1.56998
2009-01-01	4.88468
2009-04-01	2.15000
2009-07-01	0.97640
2009-10-01	0.81059
2010-01-01	4.05826
2010-04-01	1.25000
2010-07-01	0.96487
2010-10-01	2.48640
2011-01-01	1.46109
2011-04-01	1.99402
2011-07-01	4.20440
2011-10-01	-0.59597
2012-01-01	4.78726
2012-04-01	8.59524
2012-07-01	1.87094
2012-10-01	1.53814
2013-01-01	-1.00000
2013-04-01	1.84775
2013-07-01	3.18445
2013-10-01	0.88120
2014-01-01	4.75000
2014-04-01	3.07211
2014-07-01	-0.18736
2014-10-01	6.14066
2015-01-01	7.32965
2015-04-01	-1.95260