Bi-annual	US dollars
1987-06-30	0
1987-12-31	0
1988-06-30	0
1988-12-31	0
1989-06-30	0
1989-12-31	0
1990-06-30	0
1990-12-31	0
1991-06-30	0
1991-12-31	0
1992-06-30	0
1992-12-31	0
1993-06-30	0
1993-12-31	0
1994-06-30	0
1994-12-31	6
1995-06-30	243
1995-12-31	250
1996-06-30	245
1996-12-31	250
1997-06-30	253
1997-12-31	260
1998-06-30	258
1998-12-31	258
1999-06-30	252