Bi-annual	US dollars
1987-06-30	42
1987-12-31	11
1988-06-30	58
1988-12-31	40
1989-06-30	20
1989-12-31	13
1990-06-30	5
1990-12-31	4
1991-06-30	5
1991-12-31	0
1992-06-30	4
1992-12-31	0
1993-06-30	0
1993-12-31	15
1994-06-30	19
1994-12-31	0
1995-06-30	65
1995-12-31	12
1996-06-30	8
1996-12-31	29
1997-06-30	0
1997-12-31	0
1998-06-30	0
1998-12-31	0
1999-06-30	0