| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 380 |
| 2024 | May | 350 |
| 2023 | Jul | 320 |
| 2022 | May | 310 |
| 2021 | May | 280 |
| 2020 | Jun | 30 |
| 2020 | Feb | 190 |
| 2019 | May | 190 |
| 2018 | May | 180 |
| 2017 | May | 175 |
| 2016 | May | 100 |
| 2016 | Feb | 65 |
| 2015 | May | 65 |
| 2015 | Jan | 60 |
| 2014 | May | 110 |
| 2013 | May | 90 |
| 2012 | May | 70 |
| 2011 | May | 40 |
| 2011 | Mar | 25 |
| 2010 | Jun | 55 |
| 2009 | Jun | 30 |
| 2008 | Jun | 25 |
| 2007 | Jun | 20 |
| 2007 | Feb | 30 |
| 2006 | Jun | 50 |
| 2005 | Nov | 50 |
| 2005 | Jun | 35 |
| 2004 | Dec | 35 |
| 2004 | Jun | 30 |
| 2003 | Dec | 35 |
| 2003 | Jun | 60 |
| 2002 | Jun | 25 |
| 2002 | Feb | 25 |
| 2001 | Jun | 50 |
| 2001 | Feb | - |
| 2000 | Apr | 40 |
| 1999 | Aug | 20 |
| 1998 | Dec | - |
| 1998 | Jun | 40 |
| 1997 | Nov | 30 |
| 1997 | Jun | 30 |
| 1997 | Feb | 30 |