| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 100 |
| 2024 | May | 60 |
| 2023 | May | 40 |
| 2022 | May | 40 |
| 2021 | Jun | 40 |
| 2020 | Jun | 20 |
| 2020 | Feb | 30 |
| 2019 | Nov | 20 |
| 2019 | Jul | 10 |
| 2019 | May | 5 |
| 2019 | Feb | 40 |
| 2018 | Nov | 10 |
| 2018 | Aug | 10 |
| 2018 | May | 5 |
| 2018 | Feb | 8 |
| 2017 | Nov | 5 |
| 2017 | Aug | 10 |
| 2017 | May | 5 |
| 2017 | Jan | 5 |
| 2016 | Nov | 5 |
| 2016 | Aug | 5 |
| 2016 | May | 4 |
| 2016 | Mar | 17 |
| 2016 | Feb | 17 |
| 2015 | Oct | 16 |
| 2015 | Aug | 16 |
| 2015 | May | 16 |
| 2015 | Jan | 16 |
| 2014 | Oct | 15 |
| 2014 | Aug | 14 |
| 2014 | May | 17 |
| 2014 | Feb | 28 |
| 2013 | Oct | 25 |
| 2013 | Aug | 23 |
| 2013 | May | 35 |
| 2013 | Jan | 23 |
| 2012 | Oct | 23 |
| 2012 | Jul | 15 |
| 2012 | May | 50 |
| 2012 | Jan | 50 |
| 2011 | Oct | 20 |
| 2011 | Jul | 15 |
| 2011 | May | 45 |
| 2011 | Jan | 25 |
| 2010 | Oct | 15 |
| 2010 | Aug | 15 |
| 2010 | May | 30 |
| 2009 | Nov | 20 |
| 2009 | Jun | 20 |
| 2009 | Feb | 15 |
| 2008 | Jun | 10 |
| 2007 | Dec | 10 |
| 2007 | Jul | 5 |
| 2006 | Dec | 10 |
| 2006 | Jun | 10 |