| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 50 |
| 2025 | Feb | 50 |
| 2024 | May | 50 |
| 2024 | Jan | 50 |
| 2023 | May | 50 |
| 2023 | Feb | 100 |
| 2022 | May | 40 |
| 2022 | Jan | 60 |
| 2021 | Jan | 60 |
| 2020 | Mar | 30 |
| 2020 | Jan | 30 |
| 2019 | May | 60 |
| 2019 | Feb | 40 |
| 2018 | May | 60 |
| 2018 | Feb | 40 |
| 2017 | May | 40 |
| 2016 | Nov | 30 |
| 2016 | Jun | 20 |
| 1997 | Jun | 20 |