| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 100 |
| 2024 | May | 100 |
| 2023 | May | 100 |
| 2022 | May | 100 |
| 2021 | Jun | 100 |
| 2020 | Jun | 10 |
| 2020 | Feb | 200 |
| 2019 | May | 10 |
| 2018 | May | 10 |
| 2017 | May | 10 |
| 2016 | May | 10 |
| 2015 | Apr | 10 |
| 2014 | Apr | 10 |
| 2013 | May | 10 |
| 2012 | May | 10 |
| 2011 | May | 40 |
| 2010 | Apr | 40 |
| 2009 | May | 30 |
| 2008 | Apr | 30 |
| 2007 | May | 20 |
| 2006 | Jun | 10 |