Bi-annual	US dollars
1987-06-30	31
1987-12-31	72
1988-06-30	43
1988-12-31	72
1989-06-30	59
1989-12-31	45
1990-06-30	35
1990-12-31	54
1991-06-30	10
1991-12-31	34
1992-06-30	8
1992-12-31	6
1993-06-30	8
1993-12-31	1
1994-06-30	11
1994-12-31	31
1995-06-30	14
1995-12-31	19
1996-06-30	37
1996-12-31	29
1997-06-30	33
1997-12-31	46
1998-06-30	35
1998-12-31	30
1999-06-30	14