Bi-annual	US dollars
1987-06-30	35
1987-12-31	19
1988-06-30	26
1988-12-31	9
1989-06-30	8
1989-12-31	8
1990-06-30	9
1990-12-31	4
1991-06-30	6
1991-12-31	6
1992-06-30	10
1992-12-31	11
1993-06-30	11
1993-12-31	15
1994-06-30	15
1994-12-31	13
1995-06-30	25
1995-12-31	12
1996-06-30	2
1996-12-31	14
1997-06-30	3
1997-12-31	13
1998-06-30	7
1998-12-31	3
1999-06-30	3