| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 400 |
| 2024 | Apr | 200 |
| 2023 | May | 100 |
| 2022 | May | 100 |
| 2021 | May | 50 |
| 2020 | Jun | 100 |
| 2019 | May | 100 |
| 2018 | May | 100 |
| 2017 | May | 100 |
| 2016 | Mar | 100 |
| 2015 | May | 50 |
| 2014 | May | 30 |
| 2013 | May | 30 |
| 2012 | May | 100 |
| 2011 | May | 50 |
| 2010 | May | 30 |
| 2004 | May | 70 |
| 2003 | Jun | 50 |
| 1999 | Aug | 10 |
| 1998 | Jun | - |
| 1997 | Jul | 50 |