Bi-annual	US dollars
1987-06-30	48
1987-12-31	38
1988-06-30	27
1988-12-31	22
1989-06-30	17
1989-12-31	18
1990-06-30	12
1990-12-31	6
1991-06-30	6
1991-12-31	4
1992-06-30	4
1992-12-31	0
1993-06-30	18
1993-12-31	18
1994-06-30	19
1994-12-31	19
1995-06-30	16
1995-12-31	16
1996-06-30	14
1996-12-31	12
1997-06-30	12
1997-12-31	12
1998-06-30	12
1998-12-31	12
1999-06-30	9