| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 120 |
| 2024 | May | 120 |
| 2023 | May | 175 |
| 2022 | May | 50 |
| 2022 | May | 100 |
| 2021 | Apr | 55 |
| 2020 | Mar | 30 |
| 2019 | Apr | 50 |
| 2018 | Apr | 50 |
| 2017 | May | 35 |
| 2017 | Jan | 15 |
| 2016 | May | 35 |
| 2015 | May | 22 |
| 2014 | May | 20 |
| 2013 | May | 20 |
| 2012 | May | 20 |
| 2011 | Jul | 20 |
| 2010 | Jul | 20 |
| 2009 | Dec | 20 |
| 2008 | May | 24 |
| 2007 | Jun | 27 |
| 2006 | Apr | 24 |
| 2005 | Jun | 20 |
| 2004 | Aug | 15 |
| 2003 | Aug | 23 |
| 2002 | Jul | 25 |
| 2001 | Jul | 18 |
| 2000 | Sep | - |
| 2000 | Mar | 13 |
| 1999 | Aug | 20 |
| 1998 | Jul | 20 |