| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 400 |
| 2024 | May | 300 |
| 2023 | May | 200 |
| 2022 | May | 240 |
| 2021 | May | 200 |
| 2019 | May | 20 |
| 2018 | May | 20 |
| 2017 | May | 20 |
| 2016 | May | 20 |
| 2015 | Jun | 20 |
| 2012 | May | 250 |
| 2011 | Jun | 350 |
| 2010 | May | 130 |
| 2006 | Jun | 300 |
| 2005 | Jul | 30 |
| 2002 | Mar | 5 |
| 2001 | Nov | 10 |
| 2001 | Apr | 5 |
| 2000 | Nov | 10 |
| 2000 | Apr | 15 |
| 1999 | Dec | 15 |
| 1999 | Apr | 5 |
| 1998 | Dec | 20 |
| 1998 | Mar | 10 |
| 1997 | Nov | 15 |
| 1997 | Mar | 5 |