| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Nov | 35 |
| 2025 | May | 50 |
| 2025 | Feb | 30 |
| 2024 | Nov | 35 |
| 2024 | May | 45 |
| 2024 | Feb | 30 |
| 2023 | Oct | 30 |
| 2023 | May | 36 |
| 2023 | Feb | 30 |
| 2022 | Aug | 30 |
| 2022 | May | 50 |
| 2022 | Feb | 45 |
| 2021 | Oct | 35 |
| 2021 | Jun | 40 |
| 2021 | Feb | 40 |
| 2020 | Nov | 20 |
| 2020 | Feb | 20 |
| 2019 | Nov | 30 |
| 2019 | May | 50 |
| 2018 | Nov | 40 |
| 2018 | May | 50 |
| 2018 | Feb | 40 |
| 2017 | Jun | 45 |
| 2016 | Nov | 25 |
| 2016 | May | 25 |
| 2016 | Feb | 15 |
| 2015 | Nov | 25 |
| 2015 | May | 25 |
| 2015 | Feb | 10 |
| 2014 | Nov | 20 |
| 2014 | May | 20 |
| 2014 | Feb | 40 |
| 2013 | Oct | 40 |
| 2013 | May | 15 |
| 2013 | Feb | 25 |
| 2012 | May | 12 |
| 2012 | Feb | 18 |
| 2011 | May | 36 |
| 2010 | Aug | 24 |
| 2010 | May | 20 |
| 2010 | Jan | 24 |
| 2009 | Jul | 8 |
| 2008 | Jun | 36 |
| 2007 | Jun | 35 |
| 2006 | Jul | 35 |
| 2005 | Jun | 19 |
| 2005 | Jan | 15 |
| 2004 | Jun | 17 |
| 2004 | Jan | 13 |
| 2003 | Jul | 25 |
| 2002 | Jun | - |
| 2002 | Jan | 17 |
| 2001 | Jun | 17 |
| 2000 | Aug | 5 |
| 2000 | Mar | 12 |
| 1999 | May | 17 |
| 1998 | Jul | 15 |
| 1997 | Jun | 15 |