| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Jun | 10 |
| 2024 | May | 10 |
| 2019 | Jun | 10 |
| 2018 | May | 10 |
| 2017 | Aug | 10 |
| 2016 | May | 50 |
| 2015 | May | 50 |
| 2014 | May | 100 |
| 2013 | May | 100 |
| 2012 | Jul | 100 |
| 2011 | Jun | 100 |
| 2010 | Jun | 50 |
| 2009 | Dec | 50 |
| 2009 | Sep | 50 |
| 2008 | Aug | 50 |
| 2007 | Oct | 10 |
| 2006 | Sep | 10 |
| 2005 | May | 10 |
| 2004 | Apr | 8 |
| 2003 | Aug | 15 |
| 2000 | May | 8 |
| 1999 | Sep | 4 |
| 1998 | Sep | 8 |
| 1997 | Aug | 15 |