Bi-annual	US dollars
1987-06-30	6
1987-12-31	6
1988-06-30	7
1988-12-31	11
1989-06-30	16
1989-12-31	16
1990-06-30	35
1990-12-31	31
1991-06-30	21
1991-12-31	13
1992-06-30	13
1992-12-31	15
1993-06-30	57
1993-12-31	7
1994-06-30	14
1994-12-31	16
1995-06-30	13
1995-12-31	12
1996-06-30	6
1996-12-31	5
1997-06-30	7
1997-12-31	0
1998-06-30	183
1998-12-31	77
1999-06-30	0