| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | Feb | 160 |
| 2025 | May | 210 |
| 2025 | Feb | 140 |
| 2024 | May | 160 |
| 2024 | Feb | 140 |
| 2023 | May | 150 |
| 2023 | Feb | 120 |
| 2022 | May | 100 |
| 2022 | Feb | 100 |
| 2021 | May | 60 |
| 2021 | Jan | 120 |
| 2020 | May | 30 |
| 2020 | Feb | 100 |
| 2019 | May | 50 |
| 2019 | May | 75 |
| 2019 | Feb | 50 |
| 2018 | May | 70 |
| 2018 | Apr | 50 |
| 2017 | May | 65 |
| 2017 | Feb | 50 |
| 2016 | May | 10 |
| 2016 | Mar | 55 |
| 2016 | Jan | 45 |
| 2015 | May | 60 |
| 2015 | Jan | 45 |
| 2014 | May | 100 |
| 2013 | May | 45 |
| 2013 | Feb | 45 |
| 2012 | May | 80 |
| 2012 | Jan | 75 |
| 2011 | May | 70 |
| 2011 | Jan | 70 |
| 2010 | May | 40 |
| 2010 | Jan | 60 |
| 2009 | May | 25 |
| 2009 | Feb | 40 |
| 2008 | May | 50 |
| 2008 | Apr | 100 |
| 2007 | May | 20 |
| 2007 | Mar | 85 |
| 2006 | May | 135 |
| 2005 | Jun | 15 |
| 2005 | Jan | 60 |
| 2004 | Apr | 70 |
| 2003 | Jun | 75 |
| 2002 | Jun | 60 |
| 2001 | Feb | 60 |
| 2000 | Jun | - |
| 2000 | Feb | 30 |
| 1999 | Jul | 35 |
| 1997 | Jun | 45 |