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	0.05418
1997-04-01	0.12930
1997-07-01	0.15417
1997-10-01	0.13658
1998-01-01	0.04015
1998-04-01	0.05680
1998-07-01	0.01109
1998-10-01	0.00433
2008-01-01	0.08880
2008-04-01	0.09757
2008-07-01	0.08113
2008-10-01	0.06645