| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 600 |
| 2024 | May | 1,000 |
| 2023 | May | 900 |
| 2023 | May | 400 |
| 2022 | May | 280 |
| 2021 | May | 270 |
| 2020 | Jul | 270 |
| 2019 | May | 300 |
| 2018 | May | 300 |
| 2017 | May | 270 |
| 2016 | May | 250 |
| 2015 | May | 240 |
| 2014 | May | 230 |
| 2013 | May | 220 |
| 2012 | May | 200 |
| 2011 | May | 170 |
| 2010 | May | 170 |
| 2009 | May | 120 |
| 2008 | May | 100 |
| 2007 | May | 45 |