Quarter	US dollars
1986-09-30	25113
1986-12-31	27641
1987-03-31	28053
1987-06-30	29835
1987-09-30	30753
1987-12-31	32812
1988-03-31	35693
1988-06-30	40637
1988-09-30	39901
1988-12-31	43622
1989-03-31	45152
1989-06-30	48672
1989-09-30	51443
1989-12-31	54378
1990-03-31	57430
1990-06-30	63161
1990-09-30	71677
1990-12-31	71420
1991-03-31	71332
1991-06-30	72237
1991-09-30	79506
1991-12-31	75958
1992-03-31	75692
1992-06-30	83238
1992-09-30	86046
1992-12-31	86398
1993-03-31	97233
1993-06-30	105830
1993-09-30	108713
1993-12-31	108989
1994-03-31	112998
1994-06-30	119153
1994-09-30	126776
1994-12-31	126469
1995-03-31	138768
1995-06-30	143851
1995-09-30	153324
1995-12-31	174635
1996-03-31	189579
1996-06-30	201526
1996-09-30	215363
1996-12-31	224014
1997-03-31	221397
1997-06-30	220561
1997-09-30	242520
1997-12-31	249989
1998-03-31	276709
1998-06-30	293020
1998-09-30	338610
1998-12-31	281702