Quarter	Billions of US Dollars
1993-07-01	0.03000
1993-10-01	0.04500
1994-01-01	0.03000
1994-04-01	0.03000
1995-04-01	0.05000
1995-07-01	0.05000
1995-10-01	0.05000
1996-01-01	0.05000
1996-10-01	0.03000
1997-01-01	0.03000
1997-04-01	0.05500
1997-07-01	0.05500
1997-10-01	0.02500
1998-01-01	0.02500
2007-04-01	0.40515
2007-07-01	0.42537
2007-10-01	0.44163
2008-01-01	0.08880
2008-04-01	0.09757
2008-07-01	0.08113
2008-10-01	0.06645