Quarter	Billions of US Dollars
1994-04-01	0.01350
1994-10-01	0.03000
1997-04-01	-0.01350
1997-10-01	0.00000
1998-04-01	-0.03683
1999-10-01	-0.03000
2000-04-01	0.10000
2001-10-01	0.15000
2005-10-01	0.12500
2006-10-01	0.06500
2010-04-01	-0.10000
2010-07-01	0.20000