| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 13 |
| 2024 | May | 13 |
| 2023 | May | 13 |
| 2022 | May | 13 |
| 2021 | Jun | 13 |
| 2020 | Jun | 13 |
| 2019 | May | 13 |
| 2018 | May | 13 |
| 2017 | May | 13 |
| 2016 | Mar | 13 |
| 2015 | Jun | 13 |
| 2014 | Jun | 13 |
| 2013 | May | 8 |
| 2012 | Oct | 15 |
| 2008 | Jul | 20 |
| 2007 | Jul | 20 |
| 2006 | Apr | 20 |
| 2004 | Oct | 20 |
| 2002 | Sep | - |
| 2000 | Apr | 70 |