| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Nov | 20 |
| 2025 | May | 40 |
| 2025 | Feb | 40 |
| 2024 | Aug | 20 |
| 2024 | Jan | 40 |
| 2023 | May | 20 |
| 2023 | Jan | 40 |
| 2022 | May | 20 |
| 2022 | Jan | 40 |
| 2021 | Jun | 12 |
| 2021 | Mar | 28 |
| 2020 | Jun | 31 |
| 2020 | Feb | 72 |
| 2019 | May | 15 |
| 2019 | Jan | 65 |
| 2018 | May | 30 |
| 2018 | Mar | 50 |
| 2017 | May | 10 |
| 2017 | Mar | 50 |
| 2016 | May | 40 |
| 2016 | Feb | 40 |
| 2015 | May | 40 |
| 2015 | Mar | 60 |
| 2014 | May | 60 |
| 2014 | Mar | 70 |
| 2013 | May | 60 |
| 2013 | Mar | 60 |
| 2012 | May | 80 |
| 2012 | Feb | 40 |
| 2011 | May | 80 |
| 2011 | Mar | 20 |
| 2010 | Jan | 1,000 |
| 2009 | Nov | 60 |
| 2009 | Jun | 140 |
| 2008 | Dec | 45 |
| 2008 | Jun | 70 |
| 2007 | Dec | 40 |
| 2007 | May | 60 |
| 2007 | Jan | 35 |
| 2006 | May | 50 |
| 2006 | Jan | 30 |
| 2005 | Jun | 75 |
| 2004 | Jun | 65 |
| 2003 | Jul | 40 |
| 2002 | Jul | 28 |
| 2001 | Jun | 67 |
| 2000 | Jun | 125 |
| 1999 | Jul | 150 |