Bi-annual	US dollars
1987-06-30	47
1987-12-31	13
1988-06-30	51
1988-12-31	33
1989-06-30	26
1989-12-31	31
1990-06-30	30
1990-12-31	31
1991-06-30	31
1991-12-31	2
1992-06-30	2
1992-12-31	2
1993-06-30	3
1993-12-31	3
1994-06-30	5
1994-12-31	0
1995-06-30	0
1995-12-31	11
1996-06-30	3
1996-12-31	21
1997-06-30	111
1997-12-31	18
1998-06-30	3
1998-12-31	50
1999-06-30	14