Bi-annual	US dollars
1987-06-30	110
1987-12-31	83
1988-06-30	46
1988-12-31	99
1989-06-30	96
1989-12-31	63
1990-06-30	66
1990-12-31	17
1991-06-30	3
1991-12-31	30
1992-06-30	38
1992-12-31	3
1993-06-30	5
1993-12-31	12
1994-06-30	11
1994-12-31	5
1995-06-30	8
1995-12-31	2
1996-06-30	9
1996-12-31	9
1997-06-30	8
1997-12-31	41
1998-06-30	90
1998-12-31	318
1999-06-30	334