| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 600 |
| 2024 | May | 600 |
| 2023 | May | 600 |
| 2022 | May | 350 |
| 2022 | Feb | 250 |
| 2021 | May | 300 |
| 2020 | Nov | 200 |
| 2020 | Jun | 200 |
| 2019 | May | 300 |
| 2018 | May | 300 |
| 2017 | May | 120 |
| 2017 | Apr | 150 |
| 2016 | Mar | 270 |
| 2015 | May | 220 |
| 2014 | May | 200 |
| 2013 | May | 175 |
| 2012 | May | 150 |
| 2011 | May | 125 |
| 2010 | May | 100 |
| 2009 | Jul | 50 |
| 2008 | Jun | 35 |
| 2007 | Jun | 30 |
| 2006 | Jun | 25 |
| 2005 | Jun | 20 |
| 2002 | Sep | - |
| 2002 | Jul | - |
| 2001 | Jun | 15 |
| 2000 | Aug | - |
| 2000 | Apr | 25 |
| 1999 | Aug | 30 |
| 1998 | Jul | 25 |