Bi-annual	US dollars
1987-06-30	2
1987-12-31	2
1988-06-30	2
1988-12-31	2
1989-06-30	3
1989-12-31	0
1990-06-30	0
1990-12-31	0
1991-06-30	0
1991-12-31	2
1992-06-30	2
1992-12-31	2
1993-06-30	18
1993-12-31	6
1994-06-30	5
1994-12-31	23
1995-06-30	24
1995-12-31	9
1996-06-30	19
1996-12-31	14
1997-06-30	20
1997-12-31	28
1998-06-30	32
1998-12-31	12
1999-06-30	3