Bi-annual	US dollars
1987-06-30	66
1987-12-31	15
1988-06-30	72
1988-12-31	110
1989-06-30	11
1989-12-31	15
1990-06-30	16
1990-12-31	29
1991-06-30	34
1991-12-31	22
1992-06-30	23
1992-12-31	14
1993-06-30	3
1993-12-31	1
1994-06-30	74
1994-12-31	174
1995-06-30	129
1995-12-31	157
1996-06-30	90
1996-12-31	68
1997-06-30	83
1997-12-31	35
1998-06-30	50
1998-12-31	25
1999-06-30	16