Bi-annual	US dollars
1987-06-30	21
1987-12-31	36
1988-06-30	32
1988-12-31	9
1989-06-30	2
1989-12-31	8
1990-06-30	0
1990-12-31	0
1991-06-30	5
1991-12-31	0
1992-06-30	0
1992-12-31	0
1993-06-30	6
1993-12-31	6
1994-06-30	199
1994-12-31	74
1995-06-30	70
1995-12-31	70
1996-06-30	228
1996-12-31	65
1997-06-30	63
1997-12-31	69
1998-06-30	123
1998-12-31	121
1999-06-30	96