Bi-annual	US dollars
1987-06-30	39
1987-12-31	30
1988-06-30	2
1988-12-31	14
1989-06-30	14
1989-12-31	11
1990-06-30	2
1990-12-31	10
1991-06-30	18
1991-12-31	21
1992-06-30	10
1992-12-31	3
1993-06-30	57
1993-12-31	24
1994-06-30	14
1994-12-31	16
1995-06-30	2
1995-12-31	0
1996-06-30	16
1996-12-31	43
1997-06-30	22
1997-12-31	8
1998-06-30	0
1998-12-31	0
1999-06-30	0