Quarter	US dollars
1986-09-30	47400
1986-12-31	49996
1987-03-31	52941
1987-06-30	52859
1987-09-30	55518
1987-12-31	68127
1988-03-31	63013
1988-06-30	59325
1988-09-30	62098
1988-12-31	66865
1989-03-31	73628
1989-06-30	74718
1989-09-30	75994
1989-12-31	83712
1990-03-31	95634
1990-06-30	99009
1990-09-30	106272
1990-12-31	112654
1991-03-31	102517
1991-06-30	96302
1991-09-30	105300
1991-12-31	107877
1992-03-31	98000
1992-06-30	105199
1992-09-30	124718
1992-12-31	109175
1993-03-31	108658
1993-06-30	100699
1993-09-30	109018
1993-12-31	108174
1994-03-31	116270
1994-06-30	124695
1994-09-30	124926
1994-12-31	134082
1995-03-31	148391
1995-06-30	157738
1995-09-30	148788
1995-12-31	152379
1996-03-31	147646
1996-06-30	145956
1996-09-30	140365
1996-12-31	138683
1997-03-31	136837
1997-06-30	135136
1997-09-30	144848
1997-12-31	152821
1998-03-31	163334
1998-06-30	172075
1998-09-30	187852
1998-12-31	162752