| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 800 |
| 2024 | May | 800 |
| 2023 | May | 800 |
| 2022 | May | 450 |
| 2021 | May | 450 |
| 2020 | Feb | 1,350 |
| 2019 | May | 450 |
| 2018 | Mar | 400 |
| 2017 | May | 200 |
| 2017 | Feb | 200 |
| 2016 | Mar | 500 |
| 2016 | Mar | 400 |
| 2015 | May | 400 |
| 2014 | May | 300 |
| 2013 | May | 200 |
| 2012 | May | 150 |
| 2011 | May | 150 |
| 2010 | Jun | 85 |
| 2010 | Feb | 40 |
| 2009 | Jun | 95 |
| 2008 | Nov | 30 |
| 2008 | Jun | 40 |
| 2007 | Jun | 35 |
| 2006 | Jun | 25 |