Bi-annual	US dollars
1987-06-30	50
1987-12-31	55
1988-06-30	56
1988-12-31	38
1989-06-30	33
1989-12-31	34
1990-06-30	33
1990-12-31	35
1991-06-30	34
1991-12-31	6
1992-06-30	6
1992-12-31	5
1993-06-30	6
1993-12-31	7
1994-06-30	8
1994-12-31	3
1995-06-30	0
1995-12-31	11
1996-06-30	3
1996-12-31	21
1997-06-30	111
1997-12-31	28
1998-06-30	20
1998-12-31	50
1999-06-30	14