| Year | Month | Dividend (%) |
|---|---|---|
| 2021 | Jun | 10 |
| 2020 | Feb | 20 |
| 2019 | May | 20 |
| 2018 | May | 20 |
| 2017 | May | 20 |
| 2016 | Mar | 20 |
| 2016 | Mar | 40 |
| 2015 | May | 30 |
| 2014 | May | 20 |
| 2013 | May | 20 |
| 2012 | May | 10 |
| 2011 | May | 10 |
| 2010 | Apr | 15 |
| 2009 | May | 15 |
| 2008 | May | 175 |
| 2007 | Mar | 175 |
| 2006 | May | 150 |
| 2004 | Dec | 800 |
| 2004 | May | 50 |
| 2003 | Oct | 100 |
| 2003 | May | 75 |
| 2002 | Oct | 75 |
| 2002 | May | 25 |
| 2001 | Oct | 25 |
| 2001 | Jul | 15 |