| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 325 |
| 2024 | May | 300 |
| 2023 | May | 225 |
| 2022 | May | 150 |
| 2021 | May | 150 |
| 2020 | Mar | 150 |
| 2019 | May | 125 |
| 2018 | May | 115 |
| 2017 | Jun | 110 |
| 2016 | Mar | 85 |
| 2015 | May | 65 |
| 2014 | May | 50 |
| 2013 | May | 35 |
| 2012 | May | 30 |
| 2011 | May | 25 |
| 2010 | May | 15 |
| 2009 | Jun | 12 |
| 2008 | Jul | 12 |
| 2007 | May | 12 |
| 2006 | Jun | 12 |
| 2005 | Aug | 12 |