Bi-annual	US dollars
1987-06-30	0
1987-12-31	13
1988-06-30	0
1988-12-31	14
1989-06-30	6
1989-12-31	0
1990-06-30	19
1990-12-31	0
1991-06-30	0
1991-12-31	0
1992-06-30	0
1992-12-31	0
1993-06-30	47
1993-12-31	9
1994-06-30	11
1994-12-31	11
1995-06-30	21
1995-12-31	2
1996-06-30	3
1996-12-31	17
1997-06-30	23
1997-12-31	2
1998-06-30	5
1998-12-31	2
1999-06-30	0