Bi-annual	US dollars
1987-06-30	16
1987-12-31	21
1988-06-30	31
1988-12-31	22
1989-06-30	17
1989-12-31	29
1990-06-30	16
1990-12-31	29
1991-06-30	13
1991-12-31	13
1992-06-30	8
1992-12-31	0
1993-06-30	9
1993-12-31	4
1994-06-30	0
1994-12-31	0
1995-06-30	0
1995-12-31	0
1996-06-30	0
1996-12-31	3
1997-06-30	0
1997-12-31	2
1998-06-30	0
1998-12-31	255
1999-06-30	0