Bi-annual	US dollars
1987-06-30	0
1987-12-31	0
1988-06-30	9
1988-12-31	13
1989-06-30	6
1989-12-31	5
1990-06-30	31
1990-12-31	31
1991-06-30	8
1991-12-31	9
1992-06-30	10
1992-12-31	0
1993-06-30	11
1993-12-31	10
1994-06-30	6
1994-12-31	53
1995-06-30	14
1995-12-31	20
1996-06-30	37
1996-12-31	19
1997-06-30	22
1997-12-31	18
1998-06-30	20
1998-12-31	43
1999-06-30	11