| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | May | 100 |
| 2026 | Feb | 50 |
| 2025 | May | 50 |
| 2024 | May | 50 |
| 2023 | May | 50 |
| 2022 | May | 50 |
| 2021 | May | 50 |
| 2020 | Jun | 50 |
| 2019 | May | 100 |
| 2018 | May | 100 |
| 2017 | May | 60 |
| 2016 | May | 50 |
| 2015 | Jun | 50 |
| 2015 | Feb | 20 |
| 2014 | May | 50 |
| 2013 | May | 40 |
| 2013 | Feb | 30 |
| 2012 | May | 40 |
| 2011 | Nov | 35 |
| 2011 | Mar | 30 |
| 2010 | Nov | 30 |
| 2010 | May | 50 |
| 2009 | Jun | 15 |
| 2008 | Apr | 10 |
| 2007 | Aug | 10 |
| 2006 | Jun | 10 |
| 2004 | Jul | 10 |
| 2003 | Jul | 10 |
| 2002 | Jul | 10 |
| 2001 | Jul | 10 |
| 2000 | Apr | 10 |