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	2
1991-12-31	2
1992-06-30	27
1992-12-31	24
1993-06-30	32
1993-12-31	40
1994-06-30	32
1994-12-31	33
1995-06-30	11
1995-12-31	33
1996-06-30	48
1996-12-31	82
1997-06-30	40
1997-12-31	72
1998-06-30	152
1998-12-31	121
1999-06-30	112