Quarter	Billions of US Dollars
1993-10-01	0.69505
1995-07-01	0.05000
1996-10-01	-0.00464
1997-04-01	-0.00464
1997-07-01	0.10000
1997-10-01	-0.00464
1998-04-01	-0.00464
1998-10-01	-0.00464
1999-04-01	-0.00464
1999-10-01	-0.00464
2000-04-01	-0.00464
2000-10-01	-0.00464
2001-04-01	-0.00464
2001-10-01	-0.00464
2002-01-01	0.08090
2002-04-01	-0.00464
2002-07-01	-0.15000
2002-10-01	-0.00464
2003-04-01	-0.00464
2003-10-01	-0.61154
2004-01-01	-0.03500
2004-04-01	-0.00464
2004-10-01	0.14036
2005-04-01	-0.00464
2005-07-01	-0.04590
2005-10-01	-0.00463
2010-10-01	0.75000
2013-10-01	1.25000
2014-04-01	1.00000
2015-04-01	1.50000