| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 150 |
| 2024 | May | 150 |
| 2023 | May | 150 |
| 2022 | May | 75 |
| 2022 | Feb | 25 |
| 2021 | Nov | 25 |
| 2021 | Jul | 25 |
| 2021 | May | 75 |
| 2021 | Jan | 25 |
| 2020 | Oct | 25 |
| 2020 | Jul | 25 |
| 2020 | Jun | 25 |
| 2020 | Jan | 25 |
| 2019 | Oct | 25 |
| 2019 | Jul | 25 |
| 2019 | May | 25 |
| 2019 | Jan | 25 |
| 2018 | Oct | 25 |
| 2018 | Jul | 25 |
| 2018 | May | 25 |
| 2018 | Feb | 25 |
| 2017 | Nov | 25 |
| 2017 | Aug | 25 |
| 2017 | May | 25 |
| 2017 | Jan | 25 |
| 2016 | Oct | 20 |
| 2016 | Aug | 20 |
| 2016 | Apr | 20 |
| 2016 | Jan | 15 |
| 2015 | Nov | 15 |
| 2015 | Jul | 15 |
| 2015 | Apr | 50 |
| 2014 | Apr | 35 |
| 2013 | Apr | 20 |
| 2012 | Apr | 20 |
| 2011 | Apr | 15 |
| 2010 | May | 13 |
| 2009 | Jul | 13 |
| 2008 | Oct | 13 |
| 2007 | Nov | 13 |
| 2006 | Nov | 13 |
| 2005 | Sep | 13 |
| 2004 | Nov | 13 |
| 2003 | Jun | 10 |
| 1997 | Aug | 10 |