| Year | Ratio | Ex Right Date |
| 2014 | 3:10 | Jan 23, 2015 |
| 2014 | 3:10 | Jan 23, 2015 |
| 1994 | 1:2 | Nil |
| 1992 | 10:100 | Jan 10, 1992 |
| 1991 | 10:100 | Jan 10, 1992 |
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