| Year | Month | Dividend (%) |
|---|---|---|
| 2024 | May | 100 |
| 2023 | May | 150 |
| 2022 | May | 250 |
| 2021 | May | 220 |
| 2019 | May | 200 |
| 2018 | May | 200 |
| 2017 | May | 188 |
| 2016 | Mar | 60 |
| 2015 | Oct | 40 |
| 2015 | May | 40 |
| 2013 | May | 25 |
| 2013 | Jan | 50 |
| 2010 | May | 50 |
| 2008 | Jun | 100 |
| 2007 | May | 90 |
| 2006 | May | 65 |
| 2005 | Jun | 60 |
| 2004 | May | 50 |
| 2003 | Jun | 50 |
| 2002 | Jun | 30 |
| 2000 | Mar | 30 |
| 1999 | Aug | 20 |
| 1998 | Jul | 20 |
| 1997 | Jun | 20 |
