Bi-annual	US dollars
1987-06-30	147
1987-12-31	132
1988-06-30	119
1988-12-31	136
1989-06-30	113
1989-12-31	87
1990-06-30	66
1990-12-31	35
1991-06-30	11
1991-12-31	9
1992-06-30	6
1992-12-31	5
1993-06-30	0
1993-12-31	0
1994-06-30	0
1994-12-31	5
1995-06-30	5
1995-12-31	0
1996-06-30	0
1996-12-31	0
1997-06-30	0
1997-12-31	0
1998-06-30	43
1998-12-31	48
1999-06-30	0