| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | May | 75 |
| 2025 | May | 100 |
| 2024 | May | 110 |
| 2023 | May | 100 |
| 2022 | May | 100 |
| 2021 | May | 75 |
| 2020 | Jun | 30 |
| 2019 | May | 30 |
| 2018 | May | 20 |
| 2018 | Feb | 20 |
| 2017 | May | 20 |
| 2017 | Feb | 20 |
| 2016 | May | 10 |
| 2015 | Oct | 10 |
| 2001 | Jun | 5 |
| 2000 | Apr | 7 |
| 1999 | May | 7 |
| 1998 | Jun | 10 |
| 1997 | Jun | 10 |
