Bi-annual	US dollars
1987-06-30	11
1987-12-31	9
1988-06-30	9
1988-12-31	9
1989-06-30	11
1989-12-31	18
1990-06-30	14
1990-12-31	12
1991-06-30	24
1991-12-31	22
1992-06-30	27
1992-12-31	26
1993-06-30	17
1993-12-31	7
1994-06-30	12
1994-12-31	14
1995-06-30	8
1995-12-31	62
1996-06-30	12
1996-12-31	9
1997-06-30	5
1997-12-31	3
1998-06-30	7
1998-12-31	0
1999-06-30	2