Bi-annual	US dollars
1987-06-30	40
1987-12-31	30
1988-06-30	19
1988-12-31	22
1989-06-30	9
1989-12-31	61
1990-06-30	58
1990-12-31	56
1991-06-30	44
1991-12-31	47
1992-06-30	67
1992-12-31	58
1993-06-30	56
1993-12-31	80
1994-06-30	56
1994-12-31	58
1995-06-30	73
1995-12-31	40
1996-06-30	61
1996-12-31	34
1997-06-30	28
1997-12-31	12
1998-06-30	208
1998-12-31	278
1999-06-30	85