| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 100 |
| 2024 | May | 100 |
| 2023 | Aug | 100 |
| 2022 | May | 100 |
| 2021 | Jul | 250 |
| 2020 | Jun | 50 |
| 2019 | May | 200 |
| 2018 | May | 200 |
| 2017 | Aug | 250 |
| 2016 | May | 250 |
| 2015 | May | 250 |
| 2014 | May | 200 |
| 2013 | May | 100 |
| 2012 | May | 100 |
| 2011 | Apr | 200 |
| 2010 | Apr | 200 |
| 2009 | May | 200 |
| 2008 | Apr | 200 |
| 2007 | Apr | 125 |
| 2006 | Apr | 200 |
| 2005 | Apr | 200 |
| 2004 | May | 200 |
| 2003 | May | 200 |
| 2002 | May | 140 |
| 2001 | Jun | 100 |
| 2000 | Mar | 80 |
| 1999 | May | - |
| 1998 | Jun | 110 |
| 1997 | Jul | 60 |