| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | May | 35 |
| 2025 | May | 30 |
| 2024 | Nov | 15 |
| 2024 | May | 30 |
| 2023 | May | 20 |
| 2022 | May | 20 |
| 2021 | May | 20 |
| 2020 | Jun | 20 |
| 2019 | May | 20 |
| 2018 | May | 15 |
| 2017 | Sep | 12 |
| 2016 | May | 13 |
| 2015 | Jun | 12 |
| 2014 | May | 12 |
| 2013 | May | 12 |
| 2012 | May | 12 |
| 2011 | May | 12 |
| 2010 | May | 5 |
| 2010 | Jan | 5 |
| 1999 | Feb | - |