Quarter	Billions of US Dollars
1994-04-01	0.25000
1996-10-01	0.04879
1999-04-01	-0.04087
2001-07-01	0.05340
2001-10-01	-0.03433
2002-04-01	0.07806
2003-01-01	0.18244
2004-04-01	1.80610
2004-07-01	0.12445
2005-01-01	1.31481
2008-04-01	3.12370
2009-04-01	1.65267
2009-10-01	0.93530
2010-07-01	2.58229
2011-07-01	-0.08466
2012-01-01	2.62168
2012-10-01	2.91021
2013-01-01	-0.22442
2013-04-01	-0.97988
2013-07-01	0.26242
2014-04-01	-2.05676
2014-07-01	-0.13247
2014-10-01	-1.87356