| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 100 |
| 2024 | May | 100 |
| 2023 | May | 100 |
| 2022 | May | 100 |
| 2021 | May | 100 |
| 2019 | May | 100 |
| 2018 | May | 100 |
| 2016 | May | 50 |
| 2015 | May | 50 |
| 2014 | May | 100 |
| 2013 | Apr | 30 |
| 2011 | May | 20 |
| 2010 | May | 40 |
| 2009 | Apr | 40 |
| 2008 | Apr | 40 |
| 2007 | Apr | 40 |
| 2006 | Apr | 40 |
| 2005 | Apr | 20 |
| 2004 | Jul | 20 |
| 2004 | Jan | 15 |
| 2003 | Apr | 15 |
| 2002 | Apr | 11 |