Bi-annual	US dollars
1987-06-30	94
1987-12-31	17
1988-06-30	27
1988-12-31	72
1989-06-30	42
1989-12-31	32
1990-06-30	19
1990-12-31	12
1991-06-30	13
1991-12-31	11
1992-06-30	2
1992-12-31	2
1993-06-30	2
1993-12-31	7
1994-06-30	0
1994-12-31	13
1995-06-30	6
1995-12-31	2
1996-06-30	0
1996-12-31	12
1997-06-30	0
1997-12-31	0
1998-06-30	7
1998-12-31	0
1999-06-30	0