| Year | Ratio | Ex Right Date |
| 2015 | 2:7 | Jan 11, 2016 |
| 2015 | 2:7 | Jan 11, 2016 |
| 2015 | 2:7 | Jan 11, 2016 |
| 2009 | 1:5 | Jul 24, 2009 |
| 2005 | 2:5 | Sep 14, 2006 |
| 2005 | 3:2 | Jun 06, 2005 |
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