Bi-annual	US dollars
1987-06-30	61
1987-12-31	4
1988-06-30	39
1988-12-31	107
1989-06-30	9
1989-12-31	15
1990-06-30	14
1990-12-31	29
1991-06-30	19
1991-12-31	17
1992-06-30	4
1992-12-31	0
1993-06-30	2
1993-12-31	0
1994-06-30	26
1994-12-31	13
1995-06-30	46
1995-12-31	28
1996-06-30	3
1996-12-31	10
1997-06-30	5
1997-12-31	5
1998-06-30	10
1998-12-31	0
1999-06-30	9