| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | May | 12 |
| 2025 | May | 9 |
| 2023 | May | 5 |
| 2022 | May | 12 |
| 2021 | Aug | 18 |
| 2021 | May | 10 |
| 2020 | Jun | 6 |
| 2019 | May | 18 |
| 2018 | May | 18 |
| 2017 | Aug | 18 |
| 2016 | May | 6 |
| 2016 | Mar | 12 |
| 2015 | May | 12 |
| 2014 | May | 12 |
| 2013 | May | 10 |
| 2012 | May | 10 |
| 2011 | Jul | 10 |
| 2010 | Jun | 10 |
| 2009 | May | 6 |
| 2008 | Jun | 10 |
| 2007 | May | 10 |
| 2006 | Aug | 6 |
| 2002 | Sep | - |