Bi-annual	US dollars
1987-06-30	5
1987-12-31	8
1988-06-30	2
1988-12-31	0
1989-06-30	0
1989-12-31	0
1990-06-30	2
1990-12-31	2
1991-06-30	2
1991-12-31	29
1992-06-30	2
1992-12-31	2
1993-06-30	4
1993-12-31	2
1994-06-30	64
1994-12-31	4
1995-06-30	4
1995-12-31	5
1996-06-30	46
1996-12-31	12
1997-06-30	17
1997-12-31	5
1998-06-30	14
1998-12-31	63
1999-06-30	0