Bi-annual	US dollars
1987-06-30	227
1987-12-31	183
1988-06-30	261
1988-12-31	197
1989-06-30	198
1989-12-31	232
1990-06-30	235
1990-12-31	118
1991-06-30	122
1991-12-31	93
1992-06-30	49
1992-12-31	120
1993-06-30	93
1993-12-31	80
1994-06-30	94
1994-12-31	167
1995-06-30	165
1995-12-31	110
1996-06-30	75
1996-12-31	98
1997-06-30	100
1997-12-31	99
1998-06-30	58
1998-12-31	57
1999-06-30	35