| Year | Month | Dividend (%) |
|---|---|---|
| 2021 | Jun | 10 |
| 2020 | Jun | 20 |
| 2019 | May | 60 |
| 2018 | May | 30 |
| 2017 | Jun | 30 |
| 2015 | Apr | 100 |
| 2014 | Apr | 40 |
| 2014 | Apr | 100 |
| 2013 | May | 100 |
| 2012 | Apr | 100 |
| 2011 | Apr | 100 |
| 2010 | Apr | 100 |
| 2009 | Apr | 100 |
| 2008 | Apr | 80 |
| 2007 | Apr | 100 |
| 2006 | May | 40 |
| 2005 | May | 55 |
| 2004 | May | 60 |
| 2003 | Jun | 30 |
| 2002 | Sep | - |