| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 10 |
| 2024 | Apr | 10 |
| 2023 | May | 10 |
| 2022 | May | 40 |
| 2021 | Apr | 40 |
| 2020 | May | 20 |
| 2019 | Oct | 20 |
| 2019 | May | 20 |
| 2019 | Jan | 30 |
| 2018 | May | 40 |
| 2017 | Aug | 20 |
| 2016 | May | 10 |
| 2015 | Jul | 15 |
| 2013 | May | 25 |
| 2012 | Apr | 20 |
| 2011 | Jul | 15 |
| 2010 | Aug | 10 |
| 2009 | Jul | 13 |
| 2008 | Aug | 15 |
| 2007 | Jul | 10 |
| 2002 | Sep | - |
| 2001 | May | 10 |
| 2000 | May | 10 |