Bi-annual	US dollars
1987-06-30	221
1987-12-31	149
1988-06-30	160
1988-12-31	165
1989-06-30	138
1989-12-31	94
1990-06-30	129
1990-12-31	56
1991-06-30	42
1991-12-31	37
1992-06-30	69
1992-12-31	56
1993-06-30	77
1993-12-31	58
1994-06-30	102
1994-12-31	35
1995-06-30	112
1995-12-31	8
1996-06-30	5
1996-12-31	9
1997-06-30	7
1997-12-31	3
1998-06-30	28
1998-12-31	15
1999-06-30	101