| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Aug | 150 |
| 2025 | May | 150 |
| 2024 | Aug | 125 |
| 2024 | May | 125 |
| 2023 | Aug | 125 |
| 2023 | May | 100 |
| 2022 | Aug | 100 |
| 2022 | May | 100 |
| 2021 | Aug | 75 |
| 2021 | May | 75 |
| 2020 | Jun | 20 |
| 2020 | Feb | 105 |
| 2019 | May | 110 |
| 2018 | May | 100 |
| 2017 | May | 75 |
| 2016 | May | 35 |
| 2016 | Jan | 25 |
| 2015 | Aug | 50 |
| 2014 | Aug | 40 |
| 2013 | Aug | 25 |
| 2012 | Nov | 20 |
| 2011 | Nov | 15 |
| 2010 | Nov | 10 |
| 2002 | Aug | - |
| 1999 | Mar | - |