Bi-annual	US dollars
1987-06-30	106
1987-12-31	134
1988-06-30	121
1988-12-31	11
1989-06-30	2
1989-12-31	2
1990-06-30	23
1990-12-31	21
1991-06-30	21
1991-12-31	19
1992-06-30	23
1992-12-31	14
1993-06-30	26
1993-12-31	22
1994-06-30	14
1994-12-31	3
1995-06-30	13
1995-12-31	12
1996-06-30	30
1996-12-31	77
1997-06-30	12
1997-12-31	0
1998-06-30	2
1998-12-31	2
1999-06-30	8