Bi-annual	US dollars
1987-06-30	116
1987-12-31	206
1988-06-30	215
1988-12-31	78
1989-06-30	45
1989-12-31	45
1990-06-30	65
1990-12-31	35
1991-06-30	19
1991-12-31	21
1992-06-30	29
1992-12-31	47
1993-06-30	24
1993-12-31	22
1994-06-30	12
1994-12-31	2
1995-06-30	0
1995-12-31	0
1996-06-30	0
1996-12-31	0
1997-06-30	0
1997-12-31	15
1998-06-30	12
1998-12-31	10
1999-06-30	24