| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 270 |
| 2024 | May | 280 |
| 2023 | May | 480 |
| 2022 | Apr | 550 |
| 2021 | Apr | 240 |
| 2020 | May | 180 |
| 2019 | May | 200 |
| 2018 | May | 20 |
| 2018 | May | 180 |
| 2017 | May | 180 |
| 2016 | Mar | 170 |
| 2015 | May | 170 |
| 2014 | May | 170 |
| 2013 | May | 160 |
| 2012 | May | 210 |
| 2011 | Jan | 160 |
| 2010 | Jan | 150 |
| 2009 | May | 150 |
| 2008 | May | 150 |
| 2007 | Jun | 150 |
| 2006 | Jun | 120 |
| 2005 | Jun | 120 |
| 2004 | Jun | 81 |
| 2003 | Sep | 20 |
| 2002 | Dec | 60 |
| 2002 | Feb | 60 |
| 2001 | Jun | 60 |
| 2000 | Jun | 10 |
| 2000 | Apr | 50 |
| 1999 | May | 50 |
| 1997 | Jun | 45 |