| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Nov | 72 |
| 2025 | Jul | 72 |
| 2025 | May | 54 |
| 2025 | Jan | 81 |
| 2024 | Nov | 72 |
| 2024 | Aug | 90 |
| 2024 | May | 108 |
| 2024 | Jan | 63 |
| 2023 | Oct | 63 |
| 2023 | Aug | 75 |
| 2023 | Aug | 54 |
| 2023 | May | 90 |
| 2023 | Jan | 72 |
| 2022 | Nov | 72 |
| 2022 | Jul | 54 |
| 2022 | May | 54 |
| 2021 | Oct | 45 |
| 2021 | May | 90 |
| 2020 | Jun | 27 |
| 2019 | May | 54 |
| 2018 | May | 72 |
| 2017 | May | 65 |
| 2017 | Feb | 36 |
| 2016 | Mar | 75 |
| 2016 | Feb | 60 |
| 2015 | May | 70 |
| 2014 | Aug | 40 |
| 2014 | May | 50 |
| 2014 | Feb | 40 |
| 2013 | May | 45 |
| 2013 | Feb | 30 |
| 2012 | May | 35 |
| 2012 | Feb | 30 |
| 2011 | May | 45 |
| 2010 | Oct | 35 |
| 2010 | May | 80 |
| 2009 | May | 30 |
| 2009 | Jan | 25 |
| 2008 | Oct | 25 |
| 2008 | Apr | 75 |
| 2008 | Jan | 35 |
| 2007 | Oct | 40 |
| 2007 | May | 45 |
| 2007 | Jan | 30 |
| 2006 | Oct | 40 |
| 2006 | Apr | 35 |
| 2006 | Jan | 25 |
| 2005 | Oct | 40 |
| 2005 | Apr | 30 |
| 2005 | Jan | 25 |
| 2004 | Oct | 35 |
| 2004 | Apr | 40 |
| 2004 | Jan | 25 |
| 2003 | May | 40 |
| 2002 | Jun | 40 |
| 2001 | Dec | - |
| 2001 | May | 28 |
| 2000 | Mar | 15 |
| 1999 | Jul | 20 |
| 1998 | May | 15 |
| 1998 | Jan | 25 |
| 1997 | Jun | 30 |