Bi-annual	US dollars
1987-06-30	47
1987-12-31	57
1988-06-30	48
1988-12-31	43
1989-06-30	37
1989-12-31	39
1990-06-30	42
1990-12-31	33
1991-06-30	24
1991-12-31	22
1992-06-30	17
1992-12-31	11
1993-06-30	12
1993-12-31	7
1994-06-30	5
1994-12-31	6
1995-06-30	6
1995-12-31	5
1996-06-30	3
1996-12-31	3
1997-06-30	0
1997-12-31	0
1998-06-30	0
1998-12-31	0
1999-06-30	0