| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 50 |
| 2024 | May | 150 |
| 2023 | May | 150 |
| 2022 | May | 150 |
| 2021 | Jun | 150 |
| 2020 | Feb | 150 |
| 2019 | May | 150 |
| 2018 | May | 75 |
| 2017 | Nov | 75 |
| 2017 | May | 75 |
| 2016 | Nov | 75 |
| 2016 | Apr | 75 |
| 2015 | Oct | 75 |
| 2015 | Apr | 125 |
| 2014 | Apr | 100 |
| 2013 | Apr | 80 |
| 2012 | Apr | 60 |
| 2011 | Apr | 40 |
| 2010 | Dec | 30 |
| 2009 | Jul | 25 |
| 2008 | Jul | 20 |
| 2007 | Jul | 15 |
| 2005 | Oct | 10 |