Bi-annual	US dollars
1987-06-30	2
1987-12-31	0
1988-06-30	2
1988-12-31	2
1989-06-30	6
1989-12-31	6
1990-06-30	12
1990-12-31	6
1991-06-30	6
1991-12-31	7
1992-06-30	15
1992-12-31	11
1993-06-30	9
1993-12-31	7
1994-06-30	5
1994-12-31	5
1995-06-30	5
1995-12-31	8
1996-06-30	12
1996-12-31	5
1997-06-30	17
1997-12-31	5
1998-06-30	65
1998-12-31	60
1999-06-30	41