| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | Apr | 50 |
| 2025 | Apr | 50 |
| 2024 | May | 50 |
| 2023 | May | 50 |
| 2022 | May | 50 |
| 2021 | Jun | 40 |
| 2020 | Jun | 40 |
| 2019 | Aug | 40 |
| 2018 | May | 60 |
| 2017 | Jun | 60 |
| 2016 | May | 60 |
| 2015 | May | 60 |
| 2014 | May | 60 |
| 2013 | May | 60 |
| 2012 | May | 40 |
| 2011 | May | 20 |
| 2010 | May | 30 |
| 2009 | Jun | 30 |
| 2008 | Jun | 30 |
| 2007 | Oct | 30 |
| 2007 | Jun | 30 |
| 2006 | Oct | 20 |
| 2006 | Jun | 20 |
| 2005 | Oct | 20 |
| 2005 | Jun | 10 |
| 2005 | Mar | 15 |
| 2004 | Jun | 11 |
| 2003 | Jun | 8 |
| 2002 | Jun | 8 |
| 2001 | Aug | - |
| 1999 | Aug | 8 |
| 1998 | Dec | 8 |
| 1998 | Apr | 13 |
| 1997 | Sep | 30 |
