| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 200 |
| 2024 | May | 140 |
| 2023 | Jun | 275 |
| 2022 | May | 225 |
| 2021 | May | 75 |
| 2020 | Jun | 25 |
| 2020 | Feb | 100 |
| 2019 | May | 200 |
| 2018 | May | 90 |
| 2017 | Aug | 90 |
| 2016 | May | 75 |
| 2015 | May | 50 |
| 2014 | Jun | 25 |
| 2013 | May | 30 |
| 2011 | May | 40 |
| 2010 | Jun | 25 |
| 2009 | Jun | 25 |
| 2008 | Jun | 15 |
| 2007 | Jun | 15 |
| 2006 | Jun | 25 |
| 2005 | Jul | 20 |
| 2000 | Aug | 8 |
| 1999 | May | 8 |
| 1998 | Jun | 8 |
| 1997 | Jul | 35 |