Bi-annual	US dollars
1987-06-30	110
1987-12-31	55
1988-06-30	72
1988-12-31	81
1989-06-30	36
1989-12-31	45
1990-06-30	42
1990-12-31	12
1991-06-30	39
1991-12-31	248
1992-06-30	11
1992-12-31	12
1993-06-30	21
1993-12-31	35
1994-06-30	52
1994-12-31	46
1995-06-30	47
1995-12-31	87
1996-06-30	62
1996-12-31	63
1997-06-30	5
1997-12-31	7
1998-06-30	20
1998-12-31	7
1999-06-30	6