| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 50 |
| 2025 | Feb | 50 |
| 2024 | Aug | 50 |
| 2023 | Nov | 60 |
| 2023 | Feb | 100 |
| 2022 | May | 30 |
| 2022 | Feb | 30 |
| 2021 | May | 30 |
| 2021 | Feb | 20 |
| 2020 | Nov | 30 |
| 2020 | Jun | 15 |
| 2020 | Feb | 30 |
| 2019 | Jul | 20 |
| 2019 | May | 10 |
| 2019 | Feb | 20 |
| 2018 | May | 15 |
| 2017 | Jan | 20 |
| 2016 | May | 5 |
| 2016 | Feb | 20 |
| 2015 | May | 15 |
| 2014 | May | 12 |
| 2013 | May | 5 |
| 2013 | Feb | 10 |
| 2012 | May | 4 |
| 2012 | Feb | 11 |
| 2011 | Feb | 10 |
| 2010 | May | 10 |
| 2007 | Mar | 10 |
| 2006 | Oct | 10 |
| 2006 | Jun | 10 |
| 2005 | Oct | 10 |
| 2005 | May | 5 |
| 2004 | Nov | 20 |
| 2004 | May | 20 |
| 2003 | Dec | 20 |
| 2003 | May | 15 |
| 2002 | May | 30 |
| 2001 | Jun | 45 |
| 2000 | Mar | 70 |
| 1999 | Jun | 27 |
| 1998 | Jun | 24 |
| 1997 | Jul | 21 |