| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Nov | 45 |
| 2025 | Apr | 75 |
| 2024 | Nov | 45 |
| 2024 | May | 105 |
| 2023 | Nov | 45 |
| 2023 | May | 75 |
| 2022 | Nov | 45 |
| 2022 | Apr | 75 |
| 2021 | Nov | 45 |
| 2021 | May | 75 |
| 2020 | Nov | 45 |
| 2020 | Feb | 75 |
| 2019 | Nov | 45 |
| 2019 | Apr | 75 |
| 2018 | Nov | 45 |
| 2018 | May | 75 |
| 2017 | Nov | 45 |
| 2017 | May | 75 |
| 2016 | Oct | 45 |
| 2016 | Apr | 75 |
| 2015 | Nov | 45 |
| 2015 | Apr | 75 |
| 2014 | Sep | 45 |
| 2014 | Apr | 65 |
| 2013 | Oct | 35 |
| 2013 | May | 55 |
| 2012 | Oct | 25 |
| 2012 | Apr | 45 |
| 2011 | Oct | 15 |
| 2011 | Apr | 25 |
| 2010 | Nov | 15 |
| 2010 | Apr | 25 |
| 2009 | Oct | 15 |
| 2009 | Apr | 20 |
| 2008 | May | 20 |
| 2002 | Jul | - |
| 2001 | Jul | - |
| 1999 | May | - |