Bi-annual	US dollars
1987-06-30	24
1987-12-31	81
1988-06-30	41
1988-12-31	36
1989-06-30	12
1989-12-31	16
1990-06-30	12
1990-12-31	14
1991-06-30	6
1991-12-31	7
1992-06-30	10
1992-12-31	9
1993-06-30	5
1993-12-31	13
1994-06-30	11
1994-12-31	6
1995-06-30	3
1995-12-31	3
1996-06-30	3
1996-12-31	5
1997-06-30	15
1997-12-31	44
1998-06-30	7
1998-12-31	3
1999-06-30	2