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	544
1994-06-30	429
1994-12-31	474
1995-06-30	484
1995-12-31	377
1996-06-30	346
1996-12-31	404
1997-06-30	584
1997-12-31	963
1998-06-30	1842
1998-12-31	990
1999-06-30	968