Bi-annual	US dollars
1987-06-30	5
1987-12-31	0
1988-06-30	7
1988-12-31	14
1989-06-30	0
1989-12-31	6
1990-06-30	0
1990-12-31	0
1991-06-30	0
1991-12-31	9
1992-06-30	8
1992-12-31	0
1993-06-30	0
1993-12-31	4
1994-06-30	2
1994-12-31	0
1995-06-30	0
1995-12-31	0
1996-06-30	5
1996-12-31	22
1997-06-30	27
1997-12-31	13
1998-06-30	32
1998-12-31	37
1999-06-30	33