Bi-annual	US dollars
1987-06-30	10
1987-12-31	40
1988-06-30	61
1988-12-31	60
1989-06-30	31
1989-12-31	45
1990-06-30	9
1990-12-31	35
1991-06-30	2
1991-12-31	0
1992-06-30	0
1992-12-31	2
1993-06-30	3
1993-12-31	77
1994-06-30	8
1994-12-31	156
1995-06-30	21
1995-12-31	5
1996-06-30	8
1996-12-31	9
1997-06-30	10
1997-12-31	12
1998-06-30	12
1998-12-31	30
1999-06-30	11