| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 120 |
| 2024 | May | 140 |
| 2023 | May | 100 |
| 2022 | May | 50 |
| 2021 | May | 30 |
| 2020 | Oct | 20 |
| 2020 | Feb | 20 |
| 2019 | May | 12 |
| 2016 | May | 20 |
| 2015 | May | 15 |
| 2014 | May | 15 |
| 2014 | May | 15 |
| 2013 | May | 12 |
| 2009 | May | 35 |
| 2008 | May | 25 |
| 2007 | May | 25 |
| 2006 | Jun | 20 |
| 2005 | Jun | 12 |
| 2003 | Jun | 10 |
| 2002 | Jun | 18 |
| 2001 | May | 15 |
| 2000 | Apr | 15 |
| 1999 | Oct | 12 |
| 1998 | Aug | 16 |