Bi-annual	US dollars
1987-06-30	47
1987-12-31	55
1988-06-30	78
1988-12-31	101
1989-06-30	93
1989-12-31	92
1990-06-30	98
1990-12-31	44
1991-06-30	29
1991-12-31	6
1992-06-30	11
1992-12-31	6
1993-06-30	8
1993-12-31	12
1994-06-30	22
1994-12-31	3
1995-06-30	2
1995-12-31	3
1996-06-30	12
1996-12-31	27
1997-06-30	30
1997-12-31	2
1998-06-30	2
1998-12-31	3
1999-06-30	2