| Year | Ratio | Ex Right Date |
| 1998 | 6:10 | Nil |
| 1998 | 60:100 | Nil |
| 1996 | 15:100 | Jan 11, 1996 |
| 1996 | 15:100 | Jan 10, 1996 |
| 1994 | 1:10 | Jun 24, 1994 |
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