Quarter	Billions of US Dollars
1997-01-01	0.01844
1997-04-01	0.01575
1997-07-01	0.06761
1997-10-01	0.10450
1998-01-01	-0.01100
1998-04-01	0.01600
1999-01-01	0.04107
1999-04-01	-0.04927
1999-10-01	-0.00450
2000-01-01	-0.01513
2000-04-01	-0.01712
2000-07-01	-0.01000
2001-01-01	-0.00708
2001-04-01	-0.01785
2001-10-01	-0.01373
2002-01-01	-0.04381
2002-04-01	-0.03965