| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 120 |
| 2024 | May | 120 |
| 2023 | May | 110 |
| 2022 | May | 90 |
| 2021 | May | 10 |
| 2020 | May | 30 |
| 2019 | Aug | 10 |
| 2018 | May | 10 |
| 2017 | May | 10 |
| 2016 | Apr | 8 |
| 2015 | May | 8 |
| 2014 | May | 8 |
| 2013 | Apr | 10 |
| 2010 | May | 25 |
| 2009 | May | 20 |
| 2008 | Apr | 75 |
| 2007 | May | 50 |
| 2006 | Apr | 50 |
| 2005 | Jul | 30 |
| 2004 | May | 20 |
| 2003 | Jun | 45 |
| 2002 | Jun | 45 |
| 2001 | Apr | 35 |
| 2000 | Mar | 35 |
| 1999 | Apr | 30 |
| 1998 | Mar | 24 |
| 1997 | Apr | 24 |