| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 300 |
| 2024 | May | 200 |
| 2023 | May | 300 |
| 2022 | May | 200 |
| 2021 | Jun | 160 |
| 2020 | Jun | 30 |
| 2020 | Mar | 100 |
| 2019 | May | 40 |
| 2019 | Mar | 80 |
| 2018 | May | 90 |
| 2017 | May | 80 |
| 2016 | May | 30 |
| 2016 | Mar | 50 |
| 2015 | May | 70 |
| 2014 | May | 60 |
| 2013 | May | 40 |
| 2012 | Aug | 30 |
| 2011 | Aug | 25 |
| 2010 | Aug | 25 |
| 2009 | Aug | 25 |
| 2008 | Sep | 25 |
| 2007 | Oct | 25 |