| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 300 |
| 2024 | May | 260 |
| 2023 | May | 240 |
| 2022 | May | 200 |
| 2021 | Jun | 180 |
| 2020 | Jun | 180 |
| 2019 | May | 180 |
| 2018 | May | 180 |
| 2017 | Jan | 180 |
| 2016 | Jan | 150 |
| 2015 | Jan | 150 |
| 2014 | Jan | 120 |
| 2013 | Jan | 120 |
| 2012 | Jan | 120 |
| 2011 | Jan | 100 |
| 2010 | Jan | 100 |
| 2009 | Jan | 50 |
| 2008 | Jan | 50 |
| 2007 | Jan | 40 |
| 2006 | Jan | 40 |
| 2005 | Jan | 30 |
| 2004 | Apr | 25 |
| 2003 | Jul | 15 |
| 2002 | May | 12 |
| 2001 | May | 15 |
| 2000 | Mar | 15 |
| 1999 | May | 12 |
| 1998 | Jul | 12 |
| 1997 | Jun | 10 |