Bi-annual	US dollars
1987-06-30	63
1987-12-31	23
1988-06-30	10
1988-12-31	24
1989-06-30	19
1989-12-31	15
1990-06-30	24
1990-12-31	27
1991-06-30	39
1991-12-31	41
1992-06-30	44
1992-12-31	29
1993-06-30	33
1993-12-31	3
1994-06-30	3
1994-12-31	0
1995-06-30	0
1995-12-31	0
1996-06-30	3
1996-12-31	9
1997-06-30	7
1997-12-31	10
1998-06-30	27
1998-12-31	25
1999-06-30	19