| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 163 |
| 2024 | May | 120 |
| 2023 | May | 86 |
| 2022 | May | 65 |
| 2021 | May | 20 |
| 2017 | Apr | 60 |
| 2016 | May | 15 |
| 2015 | May | 42 |
| 2014 | May | 17 |
| 2014 | Jan | 30 |
| 2013 | May | 66 |
| 2012 | May | 75 |
| 2011 | Apr | 75 |
| 2010 | Apr | 40 |
| 2010 | Feb | 25 |
| 2009 | Apr | 30 |
| 2009 | Feb | 20 |
| 2008 | Apr | 40 |
| 2007 | Apr | 30 |