| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 50 |
| 2024 | May | 38 |
| 2023 | Oct | 25 |
| 2022 | Jan | 150 |
| 2021 | Jun | 125 |
| 2020 | Jun | 100 |
| 2020 | Feb | 400 |
| 2019 | May | 250 |
| 2014 | May | 80 |
| 2013 | May | 80 |
| 2012 | May | 80 |
| 2011 | May | 75 |
| 2010 | May | 70 |
| 2009 | May | 65 |
| 2008 | Jun | 65 |
| 2007 | Jun | 65 |
| 2006 | Jun | 60 |
| 2005 | Jun | 55 |
| 2004 | Jun | 50 |
| 2002 | Dec | 45 |
| 2001 | Oct | 45 |
| 2000 | Dec | 43 |
| 1999 | Nov | 40 |
| 1998 | Nov | 38 |
| 1997 | Jun | 55 |
| 1997 | Jan | 33 |