Bi-annual	US dollars
1987-06-30	82
1987-12-31	58
1988-06-30	58
1988-12-31	52
1989-06-30	40
1989-12-31	35
1990-06-30	21
1990-12-31	17
1991-06-30	13
1991-12-31	13
1992-06-30	11
1992-12-31	8
1993-06-30	8
1993-12-31	6
1994-06-30	8
1994-12-31	6
1995-06-30	5
1995-12-31	6
1996-06-30	5
1996-12-31	9
1997-06-30	53
1997-12-31	51
1998-06-30	48
1998-12-31	43
1999-06-30	55