| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 150 |
| 2024 | May | 140 |
| 2023 | May | 130 |
| 2022 | May | 130 |
| 2021 | May | 120 |
| 2020 | Feb | 90 |
| 2019 | May | 80 |
| 2018 | May | 70 |
| 2017 | May | 70 |
| 2016 | May | 25 |
| 2016 | Mar | 45 |
| 2015 | May | 45 |
| 2014 | May | 45 |
| 2013 | May | 35 |
| 2012 | May | 35 |
| 2011 | May | 35 |
| 2010 | Jun | 30 |
| 2009 | May | 25 |
| 2008 | May | 25 |