Bi-annual	US dollars
1987-06-30	39
1987-12-31	49
1988-06-30	15
1988-12-31	52
1989-06-30	26
1989-12-31	61
1990-06-30	26
1990-12-31	48
1991-06-30	42
1991-12-31	114
1992-06-30	86
1992-12-31	71
1993-06-30	81
1993-12-31	9
1994-06-30	32
1994-12-31	16
1995-06-30	30
1995-12-31	64
1996-06-30	8
1996-12-31	34
1997-06-30	10
1997-12-31	5
1998-06-30	5
1998-12-31	5
1999-06-30	14