Quarter	Billions of US Dollars
1998-10-01	0.00901
1999-01-01	0.01085
1999-04-01	-0.00458
1999-07-01	0.00010
1999-10-01	0.00408
2000-01-01	0.02431
2000-04-01	0.00199
2000-07-01	0.00355
2000-10-01	-0.03457
2001-01-01	-0.00961
2001-04-01	0.01373
2002-01-01	0.00876
2002-07-01	0.01375
2002-10-01	-0.00500
2003-01-01	0.00707
2003-04-01	0.01000
2003-07-01	0.00913
2003-10-01	0.00594
2004-01-01	0.02467
2004-04-01	0.00361
2004-07-01	0.00367
2005-01-01	-0.05654
2005-04-01	-0.04155
2005-07-01	-0.01219
2006-07-01	0.02548
2007-07-01	0.01374
2008-07-01	-0.04504
2009-01-01	-0.57279
2014-10-01	0.04434
2015-04-01	0.03204