Quarter	US dollars
1986-09-30	96303
1986-12-31	92933
1987-03-31	96110
1987-06-30	99860
1987-09-30	104525
1987-12-31	109496
1988-03-31	107576
1988-06-30	107232
1988-09-30	108722
1988-12-31	103867
1989-03-31	97386
1989-06-30	104574
1989-09-30	108725
1989-12-31	110050
1990-03-31	109696
1990-06-30	116560
1990-09-30	122595
1990-12-31	121996
1991-03-31	115275
1991-06-30	108712
1991-09-30	110256
1991-12-31	105891
1992-03-31	100025
1992-06-30	110968
1992-09-30	111544
1992-12-31	112073
1993-03-31	106814
1993-06-30	115152
1993-09-30	110873
1993-12-31	106613
1994-03-31	111659
1994-06-30	111106
1994-09-30	115624
1994-12-31	112026
1995-03-31	116113
1995-06-30	122302
1995-09-30	127071
1995-12-31	133611
1996-03-31	134370
1996-06-30	134751
1996-09-30	144578
1996-12-31	147737
1997-03-31	156900
1997-06-30	167257
1997-09-30	165178
1997-12-31	166191
1998-03-31	141891
1998-06-30	140120
1998-09-30	150304
1998-12-31	139567