| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 200 |
| 2024 | Oct | 200 |
| 2024 | May | 200 |
| 2023 | Oct | 200 |
| 2022 | Nov | 400 |
| 2021 | Oct | 400 |
| 2020 | Oct | 400 |
| 2020 | Feb | 250 |
| 2019 | May | 150 |
| 2018 | May | 50 |
| 2017 | Jun | 50 |
| 2015 | Jun | 50 |
| 2014 | May | 125 |
| 2013 | Oct | 125 |
| 2013 | May | 100 |
| 2012 | Oct | 100 |
| 2012 | May | 60 |
| 2012 | Jan | 50 |
| 2011 | Oct | 50 |
| 2011 | May | 60 |
| 2011 | Jan | 50 |
| 2010 | Oct | 50 |
| 2010 | May | 50 |
| 2010 | Jan | 40 |
| 2009 | Oct | 50 |
| 2009 | May | 40 |
| 2009 | Jan | 30 |
| 2008 | Oct | 40 |
| 2008 | May | 45 |
| 2007 | Oct | 35 |
| 2007 | May | 40 |
| 2006 | Oct | 35 |
| 2006 | May | 30 |
| 2005 | Oct | 25 |
| 2005 | Jun | 30 |
| 2004 | Oct | 50 |
| 2004 | Jun | 60 |
| 2003 | Oct | 50 |
| 2003 | Jun | 90 |
| 2002 | Jun | 55 |
| 2001 | May | 15 |
| 2000 | Oct | 35 |
| 1999 | May | 25 |
| 1998 | Oct | 25 |
| 1998 | Jun | 25 |
| 1997 | Oct | 25 |
| 1997 | Jun | 40 |