| Year | Ratio | Ex Right Date |
| 2024 | 9:26 | Feb 10, 2025 |
| 2023 | 6:37 | Mar 21, 2024 |
| 2010 | 1:8 | Jan 13, 2011 |
| 2000 | 1:1 | Jun 27, 2000 |
| 1992 | 1:1 | Jun 26, 1992 |
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