Quarter	Billions of US Dollars
1987-10-01	0.01500
1988-01-01	0.08200
1988-04-01	0.11900
1988-07-01	0.05500
1988-10-01	0.04700
1989-01-01	0.05900
1989-04-01	0.05700
1989-07-01	0.07600
1989-10-01	0.02200
1990-01-01	0.06500
1990-04-01	0.16400
1990-07-01	0.14600
1990-10-01	0.11700
1991-01-01	0.15400
1991-04-01	0.28600
1991-07-01	0.22400
1991-10-01	0.20700
1992-01-01	0.23300
1992-04-01	0.22800
1992-07-01	0.18800
1992-10-01	0.10600
1993-01-01	0.37600
1993-04-01	0.16100
1993-07-01	0.07100
1993-10-01	0.06800
1994-01-01	0.05800
1994-04-01	0.05900
1994-07-01	0.04700
1994-10-01	0.05200
1995-01-01	0.05600
1995-04-01	0.01900
1995-07-01	0.02350
1995-10-01	0.02200
1996-01-01	0.01500
1996-07-01	0.11837
1996-10-01	0.11312
1997-01-01	0.15100
1997-04-01	0.14148
1997-07-01	0.02200
1997-10-01	0.00300
1998-01-01	0.00700
1998-04-01	0.00700
1999-10-01	0.02935
2000-01-01	0.05334
2000-04-01	0.05346
2000-07-01	0.05282