Bi-annual	US dollars
1987-06-30	11
1987-12-31	11
1988-06-30	31
1988-12-31	33
1989-06-30	23
1989-12-31	21
1990-06-30	28
1990-12-31	19
1991-06-30	21
1991-12-31	21
1992-06-30	19
1992-12-31	15
1993-06-30	14
1993-12-31	10
1994-06-30	5
1994-12-31	5
1995-06-30	3
1995-12-31	0
1996-06-30	0
1996-12-31	0
1997-06-30	0
1997-12-31	0
1998-06-30	0
1998-12-31	10
1999-06-30	0