| Year | Month | Dividend (%) |
|---|---|---|
| 2019 | Nov | 30 |
| 2019 | May | 25 |
| 2018 | Nov | 55 |
| 2018 | May | 50 |
| 2017 | Dec | 55 |
| 2017 | May | 30 |
| 2016 | Nov | 55 |
| 2016 | May | 50 |
| 2015 | Nov | 55 |
| 2015 | May | 50 |
| 2014 | Nov | 50 |
| 2014 | May | 35 |
| 2013 | Oct | 40 |
| 2013 | May | 60 |
| 2012 | May | 50 |
| 2011 | May | 40 |
| 2010 | Jun | 20 |
| 2009 | Aug | 5 |
| 2008 | Jul | 5 |
| 2007 | Jul | 10 |
| 2006 | Jun | 10 |
| 2004 | Jul | 10 |
| 2000 | Aug | 6 |
| 1999 | Sep | 6 |