| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 130 |
| 2024 | May | 130 |
| 2023 | May | 110 |
| 2022 | May | 100 |
| 2021 | May | 100 |
| 2020 | Mar | 100 |
| 2019 | May | 210 |
| 2018 | May | 210 |
| 2017 | May | 200 |
| 2016 | Mar | 200 |
| 2015 | May | 200 |
| 2014 | May | 40 |
| 2013 | May | 40 |
| 2012 | Apr | 40 |
| 2011 | Apr | 25 |
| 2010 | Jan | 75 |
| 2009 | Apr | 50 |
| 2008 | Apr | 50 |
| 2008 | Jan | 50 |
| 2007 | Apr | 100 |
| 2007 | Jan | 100 |
| 2006 | Apr | 100 |
| 2006 | Jan | 100 |
| 2005 | Apr | 75 |
| 2004 | Oct | 50 |
| 2004 | May | 50 |
| 2003 | Dec | 50 |
| 2003 | Jun | 50 |
| 2002 | Jun | 35 |
| 2001 | Jun | 35 |
| 2000 | May | 35 |
| 1999 | Jul | - |
| 1998 | Aug | 35 |
| 1997 | Aug | 25 |