| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 60 |
| 2025 | Jan | 40 |
| 2024 | May | 50 |
| 2024 | Jan | 40 |
| 2023 | May | 50 |
| 2023 | Jan | 40 |
| 2022 | May | 50 |
| 2022 | Jan | 40 |
| 2021 | Apr | 45 |
| 2021 | Feb | 40 |
| 2020 | Mar | 45 |
| 2020 | Jan | 35 |
| 2019 | May | 35 |
| 2019 | Feb | 30 |
| 2018 | May | 35 |
| 2018 | Jan | 30 |
| 2017 | May | 35 |
| 2017 | Feb | 25 |
| 2016 | May | 20 |
| 2015 | Dec | 40 |
| 2015 | Jul | 20 |
| 2015 | Feb | 20 |
| 2014 | May | 25 |
| 2013 | May | 20 |
| 2012 | Jun | 20 |
| 2008 | Jul | 20 |
| 2007 | Jul | 20 |
| 2006 | Jun | 10 |
| 2006 | Jan | 10 |
| 2005 | Jun | 10 |
| 2004 | Oct | 10 |
| 2004 | Jun | 6 |
| 2003 | Oct | 12 |
| 2003 | Jun | 5 |
| 2002 | Oct | 10 |
| 2002 | Jun | - |
| 2002 | Jan | 10 |