| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 10 |
| 2024 | May | 25 |
| 2023 | May | 30 |
| 2022 | Nov | 30 |
| 2022 | May | 30 |
| 2021 | May | 50 |
| 2020 | Jun | 40 |
| 2020 | Feb | 40 |
| 2019 | May | 20 |
| 2018 | Oct | 30 |
| 2018 | May | 25 |
| 2017 | Jun | 15 |
| 2013 | May | 5 |
| 2012 | May | 10 |
| 2011 | May | 45 |
| 2010 | Oct | 15 |
| 2010 | May | 20 |
| 2009 | May | 10 |
| 2008 | May | 10 |
| 2007 | May | 25 |
| 2007 | Mar | 15 |
| 2006 | May | 35 |
| 2006 | Jan | 15 |
| 2005 | Jun | 25 |
| 2004 | May | 20 |
| 2002 | Jul | - |
| 2001 | Jul | - |