Bi-annual	US dollars
1987-06-30	69
1987-12-31	319
1988-06-30	96
1988-12-31	52
1989-06-30	56
1989-12-31	53
1990-06-30	129
1990-12-31	141
1991-06-30	36
1991-12-31	86
1992-06-30	167
1992-12-31	138
1993-06-30	132
1993-12-31	49
1994-06-30	68
1994-12-31	97
1995-06-30	68
1995-12-31	39
1996-06-30	48
1996-12-31	39
1997-06-30	133
1997-12-31	90
1998-06-30	87
1998-12-31	92
1999-06-30	115