Quarter	US dollars
1986-09-30	71828
1986-12-31	74828
1987-03-31	81128
1987-06-30	79658
1987-09-30	82729
1987-12-31	100868
1988-03-31	94994
1988-06-30	89146
1988-09-30	90796
1988-12-31	98531
1989-03-31	102817
1989-06-30	104449
1989-09-30	107282
1989-12-31	118550
1990-03-31	132693
1990-06-30	136994
1990-09-30	148543
1990-12-31	156024
1991-03-31	141735
1991-06-30	134083
1991-09-30	146554
1991-12-31	148664
1992-03-31	137082
1992-06-30	145814
1992-09-30	184204
1992-12-31	156288
1993-03-31	161771
1993-06-30	154289
1993-09-30	161638
1993-12-31	162855
1994-03-31	167521
1994-06-30	175718
1994-09-30	179589
1994-12-31	193621
1995-03-31	219460
1995-06-30	223124
1995-09-30	216522
1995-12-31	227900
1996-03-31	219873
1996-06-30	219738
1996-09-30	222361
1996-12-31	213719
1997-03-31	211695
1997-06-30	202966
1997-09-30	208879
1997-12-31	225727
1998-03-31	235478
1998-06-30	246257
1998-09-30	278307
1998-12-31	235462