Quarter	Billions of US Dollars
1988-10-01	0.08252
1989-01-01	0.07819
1989-04-01	0.07535
1989-07-01	0.07892
1989-10-01	0.16509
1990-01-01	0.16780
1990-04-01	0.17067
1990-07-01	0.18091
1990-10-01	0.18597
1991-01-01	0.16490
1991-04-01	0.26685
1991-07-01	0.28899
1991-10-01	0.31372
1992-01-01	0.29159
1992-04-01	0.48706
1992-07-01	0.46990
1992-10-01	0.39675
1993-01-01	0.37282
1993-04-01	0.31455
1993-07-01	0.30951
1993-10-01	0.20540
1994-01-01	0.29222
1994-04-01	0.29568
1994-07-01	0.28486
1994-10-01	0.27476
1995-01-01	0.22808
1995-04-01	0.23691
1995-07-01	0.24063
1995-10-01	0.24432
1996-01-01	0.22309
1996-04-01	0.13034
1996-07-01	0.13103
1996-10-01	0.13067
1997-01-01	0.11925