Quarter	US dollars
1986-09-30	448076
1986-12-31	466628
1987-03-31	492721
1987-06-30	511620
1987-09-30	537766
1987-12-31	602064
1988-03-31	595294
1988-06-30	585762
1988-09-30	606542
1988-12-31	626905
1989-03-31	638981
1989-06-30	616426
1989-09-30	643918
1989-12-31	668277
1990-03-31	686163
1990-06-30	696437
1990-09-30	768918
1990-12-31	804974
1991-03-31	759704
1991-06-30	718343
1991-09-30	742996
1991-12-31	744343
1992-03-31	708641
1992-06-30	733023
1992-09-30	810621
1992-12-31	765952
1993-03-31	761544
1993-06-30	742892
1993-09-30	758694
1993-12-31	786058
1994-03-31	801825
1994-06-30	836075
1994-09-30	876269
1994-12-31	916640
1995-03-31	970532
1995-06-30	973415
1995-09-30	968582
1995-12-31	999024
1996-03-31	1002253
1996-06-30	999916
1996-09-30	1027826
1996-12-31	1059465
1997-03-31	1092974
1997-06-30	1084789
1997-09-30	1138991
1997-12-31	1293553
1998-03-31	1315593
1998-06-30	1379325
1998-09-30	1520795
1998-12-31	1494378