| Year | Month | Dividend (%) |
|---|---|---|
| 2024 | May | 300 |
| 2023 | May | 250 |
| 2022 | May | 200 |
| 2021 | May | 250 |
| 2020 | Jun | 110 |
| 2020 | Jan | 60 |
| 2019 | May | 90 |
| 2019 | Jan | 65 |
| 2018 | Apr | 90 |
| 2018 | Jan | 65 |
| 2017 | May | 90 |
| 2017 | Jan | 60 |
| 2016 | Mar | 100 |
| 2015 | May | 70 |
| 2014 | May | 75 |
| 2013 | May | 20 |
| 2013 | Jan | 20 |
| 2012 | May | 30 |
| 2012 | Jan | 40 |
| 2011 | May | 20 |
| 2011 | Jan | 30 |
| 2010 | May | 15 |
| 2010 | Jan | 30 |
| 2009 | May | 20 |
| 2008 | Jul | 40 |