Quarter	Billions of US Dollars
1993-07-01	0.23156
1993-10-01	-0.03081
1994-01-01	-0.39054
1994-04-01	-0.09405
1994-07-01	-0.03605
1994-10-01	-0.00610
1995-01-01	-0.00300
1995-04-01	-0.00145
1996-10-01	0.08539
2001-04-01	0.23328
2001-07-01	0.08445
2001-10-01	0.16274
2003-07-01	0.23205
2003-10-01	0.85672
2004-01-01	1.01570
2004-04-01	-0.01164
2004-07-01	0.94417
2004-10-01	0.06631
2005-01-01	0.50885
2005-04-01	0.92641
2005-07-01	0.23188
2005-10-01	-0.49985
2006-01-01	0.54159
2006-04-01	1.11117
2006-07-01	0.01609
2006-10-01	-0.77165
2007-01-01	1.61585
2007-04-01	2.43915
2007-07-01	-2.42192
2007-10-01	-0.19498
2008-01-01	1.07035
2008-04-01	-0.92073
2008-07-01	2.08190
2008-10-01	-4.31735
2009-01-01	-0.38730
2009-04-01	0.16501
2009-07-01	0.58307
2009-10-01	-0.14230
2010-01-01	0.03881
2010-04-01	-1.58123
2010-07-01	-0.02493
2010-10-01	-0.02747
2011-01-01	-0.00708
2011-04-01	1.12274
2011-07-01	1.66931
2011-10-01	1.34767
2012-01-01	-4.38376
2012-04-01	0.12308
2012-07-01	-1.22544
2013-01-01	0.05000
2013-04-01	1.69845
2013-07-01	0.04500
2013-10-01	-0.77781
2014-01-01	-0.12100
2014-07-01	-0.94727
2014-10-01	-0.03123
2015-01-01	-0.00400