Bi-annual	US dollars
1987-06-30	0
1987-12-31	0
1988-06-30	0
1988-12-31	2
1989-06-30	2
1989-12-31	0
1990-06-30	23
1990-12-31	23
1991-06-30	2
1991-12-31	2
1992-06-30	8
1992-12-31	3
1993-06-30	9
1993-12-31	1
1994-06-30	2
1994-12-31	13
1995-06-30	11
1995-12-31	11
1996-06-30	12
1996-12-31	7
1997-06-30	12
1997-12-31	8
1998-06-30	18
1998-12-31	20
1999-06-30	13