| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | May | 177 |
| 2025 | May | 158 |
| 2024 | May | 139 |
| 2023 | May | 236 |
| 2022 | May | 100 |
| 2021 | May | 80 |
| 2020 | Jun | 80 |
| 2019 | May | 80 |
| 2018 | May | 65 |
| 2017 | May | 50 |
| 2016 | May | 45 |
| 2015 | May | 45 |
| 2014 | May | 40 |
| 2013 | May | 35 |
| 2012 | May | 30 |
| 2011 | May | 30 |
| 2010 | May | 30 |
| 2009 | Jun | 30 |
| 2008 | May | 35 |
| 2007 | May | 10 |
| 2006 | Oct | 15 |
| 2006 | May | 20 |
| 2005 | May | 15 |
| 2004 | Apr | 8 |
| 1997 | Jul | 35 |
