Quarter	Billions of US Dollars
1993-07-01	0.02200
1993-10-01	-0.01000
1994-01-01	0.00450
1994-04-01	0.00350
1994-10-01	0.00200
1995-01-01	-0.00900
1995-04-01	0.00700
1995-10-01	-0.00600
1996-01-01	-0.00400
1996-04-01	0.00500
1996-07-01	-0.00434
1996-10-01	0.26550
1997-01-01	0.14458
1997-04-01	0.02911
1997-07-01	-0.02335
1997-10-01	-0.07905
1998-01-01	-0.14342
1998-04-01	-0.01999
1998-07-01	-0.07395
1998-10-01	-0.00527
1999-01-01	0.00342
1999-04-01	-0.00146
1999-07-01	-0.00273
2004-10-01	0.00500
2006-01-01	0.06000
2006-04-01	-0.01500
2006-07-01	0.01500
2006-10-01	-0.04500
2007-01-01	-0.01500
2007-10-01	-0.00500