| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 40 |
| 2024 | May | 30 |
| 2023 | May | 50 |
| 2022 | Jan | 100 |
| 2021 | Sep | 250 |
| 2021 | Jan | 250 |
| 2020 | Feb | 150 |
| 2019 | May | 60 |
| 2018 | May | 60 |
| 2017 | May | 100 |
| 2016 | Mar | 100 |
| 2015 | May | 35 |
| 2014 | May | 10 |
| 2013 | May | 25 |
| 2012 | May | 50 |
| 2011 | May | 50 |
| 2010 | May | 50 |
| 2009 | Jun | 50 |
| 2008 | Apr | 50 |
| 2007 | Apr | 40 |
| 2006 | Apr | 40 |
| 2005 | Apr | 35 |
| 2004 | Apr | 45 |
| 2003 | Apr | 45 |
| 2002 | Apr | 40 |
| 2001 | Apr | 25 |
| 2000 | Sep | - |
| 2000 | May | 10 |
| 1999 | Jun | - |
| 1998 | Jun | 10 |