Bi-annual	US dollars
1987-06-30	306
1987-12-31	206
1988-06-30	239
1988-12-31	293
1989-06-30	273
1989-12-31	306
1990-06-30	281
1990-12-31	311
1991-06-30	81
1991-12-31	88
1992-06-30	91
1992-12-31	61
1993-06-30	54
1993-12-31	46
1994-06-30	45
1994-12-31	31
1995-06-30	22
1995-12-31	17
1996-06-30	16
1996-12-31	17
1997-06-30	10
1997-12-31	-10
1998-06-30	12
1998-12-31	-10
1999-06-30	-9