Bi-annual	US dollars
1987-06-30	34
1987-12-31	9
1988-06-30	7
1988-12-31	11
1989-06-30	14
1989-12-31	16
1990-06-30	21
1990-12-31	17
1991-06-30	16
1991-12-31	13
1992-06-30	30
1992-12-31	29
1993-06-30	110
1993-12-31	69
1994-06-30	82
1994-12-31	103
1995-06-30	3
1995-12-31	169
1996-06-30	11
1996-12-31	0
1997-06-30	10
1997-12-31	30
1998-06-30	195
1998-12-31	0
1999-06-30	0