| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | Feb | 60 |
| 2025 | May | 50 |
| 2025 | Feb | 60 |
| 2024 | Aug | 50 |
| 2024 | Mar | 60 |
| 2023 | May | 60 |
| 2023 | Feb | 50 |
| 2022 | May | 60 |
| 2022 | Jan | 50 |
| 2021 | May | 60 |
| 2021 | Mar | 40 |
| 2020 | Feb | 40 |
| 2019 | May | 20 |
| 2019 | Jan | 20 |
| 2018 | May | 25 |
| 2017 | Apr | 35 |
| 2016 | Mar | 25 |
| 2015 | Apr | 25 |
| 2014 | Apr | 25 |
| 2013 | Apr | 25 |
| 2012 | Apr | 20 |
| 2011 | Apr | 20 |
| 2010 | Apr | 20 |
| 2009 | Jun | 10 |
| 2008 | Feb | 15 |
| 1999 | Aug | - |