Bi-annual	US dollars
1987-06-30	66
1987-12-31	34
1988-06-30	92
1988-12-31	24
1989-06-30	96
1989-12-31	66
1990-06-30	16
1990-12-31	35
1991-06-30	92
1991-12-31	77
1992-06-30	46
1992-12-31	42
1993-06-30	41
1993-12-31	53
1994-06-30	52
1994-12-31	42
1995-06-30	24
1995-12-31	64
1996-06-30	20
1996-12-31	46
1997-06-30	45
1997-12-31	53
1998-06-30	53
1998-12-31	48
1999-06-30	44