Quarter	Billions of US Dollars
1997-07-01	1.20000
1997-10-01	2.18750
1998-01-01	-0.18750
1999-04-01	0.17875
1999-07-01	0.16364
1999-10-01	-0.11102
2000-01-01	0.01754
2000-04-01	0.00605
2000-07-01	-0.00479
2000-10-01	0.00587
2001-01-01	0.00630
2001-04-01	0.00678
2001-07-01	-0.09763
2002-01-01	0.07760
2002-10-01	-0.10000
2003-04-01	0.25000
2003-07-01	0.05000
2004-07-01	-0.60000
2005-10-01	0.01004
2006-04-01	0.01602
2006-07-01	0.08040
2006-10-01	-0.15166
2007-01-01	0.06706
2007-04-01	0.06329
2007-07-01	-0.46050
2007-10-01	-0.17626
2008-01-01	0.13362
2008-04-01	-0.04413
2008-07-01	-0.15171
2008-10-01	0.00037
2009-01-01	-0.09376
2009-10-01	0.02140
2010-01-01	-0.14034
2010-04-01	-0.28214
2010-07-01	0.02373
2011-01-01	-0.12276
2011-04-01	-0.01829
2011-10-01	-0.01501
2012-04-01	-0.02945
2012-07-01	0.01041
2012-10-01	-1.36045
2013-01-01	0.00002
2013-07-01	0.12531
2014-01-01	-0.06000
2014-07-01	-0.00400
2014-10-01	0.75000