Bi-annual	US dollars
1987-06-30	53
1987-12-31	2
1988-06-30	2
1988-12-31	0
1989-06-30	11
1989-12-31	6
1990-06-30	24
1990-12-31	23
1991-06-30	31
1991-12-31	13
1992-06-30	21
1992-12-31	38
1993-06-30	20
1993-12-31	0
1994-06-30	25
1994-12-31	0
1995-06-30	27
1995-12-31	11
1996-06-30	9
1996-12-31	149
1997-06-30	118
1997-12-31	2
1998-06-30	117
1998-12-31	125
1999-06-30	142