Bi-annual	US dollars
1987-06-30	0
1987-12-31	0
1988-06-30	0
1988-12-31	0
1989-06-30	0
1989-12-31	0
1990-06-30	0
1990-12-31	12
1991-06-30	18
1991-12-31	13
1992-06-30	10
1992-12-31	8
1993-06-30	11
1993-12-31	9
1994-06-30	9
1994-12-31	38
1995-06-30	8
1995-12-31	8
1996-06-30	5
1996-12-31	9
1997-06-30	13
1997-12-31	0
1998-06-30	0
1998-12-31	0
1999-06-30	0