Quarter	US dollars
1986-12-31	358
1987-03-31	902
1987-06-30	-498
1987-09-30	-472
1987-12-31	281
1988-03-31	121
1988-06-30	-1567
1988-09-30	-262
1988-12-31	119
1989-03-31	-438
1989-06-30	328
1989-09-30	51
1989-12-31	-793
1990-03-31	262
1990-06-30	507
1990-09-30	832
1990-12-31	583
1991-03-31	977
1991-06-30	-258
1991-09-30	839
1991-12-31	-334
1992-03-31	345
1992-06-30	1990
1992-09-30	1272
1992-12-31	-494
1993-03-31	221
1993-06-30	-93
1993-09-30	649
1993-12-31	1309
1994-03-31	1163
1994-06-30	1928
1994-09-30	-867
1994-12-31	687
1995-03-31	-364
1995-06-30	2714
1995-09-30	1123
1995-12-31	355
1996-03-31	3265
1996-06-30	3206
1996-09-30	2729
1996-12-31	1291
1997-03-31	3345
1997-06-30	3988
1997-09-30	349
1997-12-31	-4731
1998-03-31	-4491
1998-06-30	2219
1998-09-30	-4868
1998-12-31	95