| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 300 |
| 2022 | May | 200 |
| 2019 | May | 110 |
| 2018 | May | 110 |
| 2017 | Jun | 110 |
| 2016 | Jun | 25 |
| 2016 | Mar | 80 |
| 2015 | May | 80 |
| 2014 | Jun | 75 |
| 2013 | May | 60 |
| 2012 | May | 50 |
| 2011 | May | 45 |
| 2010 | May | 35 |
| 2009 | Jul | 35 |
| 2008 | Jun | 35 |
| 2007 | Jul | 30 |
| 2006 | Aug | 30 |
| 2005 | Jul | 24 |
| 2004 | Aug | 12 |
| 2003 | Aug | 12 |
| 1997 | Aug | 5 |