Bi-annual	US dollars
1987-06-30	105
1987-12-31	192
1988-06-30	165
1988-12-31	266
1989-06-30	180
1989-12-31	102
1990-06-30	192
1990-12-31	73
1991-06-30	39
1991-12-31	80
1992-06-30	93
1992-12-31	67
1993-06-30	329
1993-12-31	324
1994-06-30	111
1994-12-31	102
1995-06-30	97
1995-12-31	110
1996-06-30	22
1996-12-31	87
1997-06-30	183
1997-12-31	97
1998-06-30	103
1998-12-31	25
1999-06-30	65