| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Jul | 70 |
| 2025 | Feb | 90 |
| 2025 | Feb | 100 |
| 2024 | Jul | 70 |
| 2024 | Feb | 90 |
| 2023 | Jul | 60 |
| 2023 | Feb | 70 |
| 2022 | Jul | 60 |
| 2022 | Feb | 60 |
| 2021 | Aug | 50 |
| 2021 | Feb | 60 |
| 2020 | Oct | 50 |
| 2020 | Jun | 60 |
| 2019 | Jul | 50 |
| 2019 | Jan | 55 |
| 2018 | Jul | 45 |
| 2018 | Feb | 50 |
| 2017 | Aug | 90 |
| 2017 | Feb | 40 |
| 2017 | Feb | 90 |
| 2016 | Jul | 90 |
| 2016 | Feb | 100 |
| 2015 | Jul | 80 |
| 2015 | Feb | 80 |
| 2014 | Jul | 70 |
| 2014 | Jan | 35 |
| 2013 | Jul | 35 |
| 2013 | Feb | 35 |
| 2012 | Jul | 70 |
| 2012 | Feb | 80 |
| 2011 | Jul | 70 |
| 2011 | Feb | 80 |
| 2010 | Jul | 70 |
| 2010 | Feb | 150 |
| 2009 | Jul | 100 |
| 2009 | Jan | 90 |
| 2008 | Jul | 60 |
| 2008 | Jan | 95 |
| 2007 | Jul | 45 |
| 2007 | Jan | 50 |
| 2006 | Jul | 40 |
| 2006 | Jan | 43 |
| 2005 | Jun | 40 |
| 2005 | Jan | 43 |
| 2004 | Jul | 40 |
| 2004 | Jan | 43 |
| 2003 | Jul | 40 |
| 2003 | Apr | 125 |
| 2002 | Jan | 75 |
| 2001 | Feb | 50 |
| 2000 | Jul | - |
| 2000 | Jan | 99 |
| 1999 | Oct | - |
| 1999 | Jul | - |
| 1999 | Feb | 20 |
| 1998 | Oct | 70 |
| 1998 | Jul | 60 |
| 1998 | Feb | 80 |
| 1997 | Feb | 55 |