| Revenue (ooo’s US$) | Cargo carried | ||
|
| in MT | R per ton | |
| 1987 | 54,641 | --- | --- |
| 1988 | 56,641 | 5,481,741 | $10.33 |
| 1989 | 65,260 | 6,559,861 | $ 9.95 |
| 1990 | 61,302 | 5,394,504 | $11.36 |
| 1991 | 76,067 | 6,637,136 | $11.46 |
| 1992 | 85,606 | 9,650,769 | $ 8.87 |
| 1993 | 115,044 | 10,227,326 | $11.25 |
| 1994 | 118,762 | 10,704,040 | $11.09 |
| 1995 | 150,301 | 12,668,400 | $11.86 |
| 1996 | 140,732 | 11,221,866 | $12.54 |
| 1997 | 149,739 | 11,075,501 | $13.52(*) |
| 1998 | 127,616 | 11,565,067 | $11.03 |
| 1999 | 120,906 | 11,937,682 | $10.13 |
| 2000 | 202,800 | 15,138,337 | $13.40 |