| Year | Month | Dividend (%) |
|---|---|---|
| 2024 | May | 70 |
| 2023 | Oct | 70 |
| 2023 | May | 70 |
| 2022 | Nov | 70 |
| 2022 | May | 70 |
| 2021 | Oct | 70 |
| 2021 | Jun | 100 |
| 2020 | Oct | 40 |
| 2020 | Jun | 60 |
| 2019 | Oct | 40 |
| 2019 | May | 80 |
| 2018 | Nov | 40 |
| 2018 | May | 70 |
| 2017 | Nov | 30 |
| 2017 | May | 70 |
| 2016 | Nov | 30 |
| 2016 | Jun | 55 |
| 2015 | Nov | 30 |
| 2015 | May | 55 |
| 2014 | Oct | 30 |
| 2014 | May | 50 |
| 2013 | Nov | 20 |
| 2013 | May | 30 |
| 2012 | Nov | 20 |
| 2012 | May | 30 |
| 2011 | Oct | 20 |
| 2011 | May | 20 |
| 2010 | Oct | 20 |
| 2010 | May | 15 |
| 2010 | Jan | 10 |
| 2009 | Oct | 15 |
| 2009 | Jun | 15 |
| 2008 | Jun | 5 |
| 2007 | Jun | 10 |
| 2005 | May | 8 |
| 2004 | Jun | 5 |
| 2003 | May | 5 |
| 2002 | May | 10 |
| 2001 | Aug | 10 |