| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 145 |
| 2024 | May | 75 |
| 2023 | May | 33 |
| 2022 | May | 32 |
| 2015 | May | 165 |
| 2014 | Jan | 100 |
| 2013 | May | 270 |
| 2012 | May | 220 |
| 2011 | May | 220 |
| 2010 | May | 120 |
| 2010 | Jan | 100 |
| 2009 | May | 200 |
| 2008 | May | 130 |
| 2007 | May | 60 |
| 2007 | Jan | 40 |
| 2006 | May | 30 |
| 2005 | Oct | 30 |
| 2005 | Apr | 30 |
| 2005 | Jan | 30 |
| 2004 | May | 15 |
| 2003 | Nov | 25 |
| 2003 | May | 35 |