| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 50 |
| 2024 | Apr | 50 |
| 2023 | Apr | 50 |
| 2022 | Apr | 25 |
| 2021 | May | 50 |
| 2020 | Jun | 50 |
| 2019 | May | 70 |
| 2018 | May | 50 |
| 2017 | May | 50 |
| 2016 | Apr | 50 |
| 2015 | May | 50 |
| 2014 | Apr | 40 |
| 2013 | Apr | 40 |
| 2012 | May | 40 |
| 2011 | May | 40 |
| 2010 | May | 40 |
| 2009 | May | 40 |
| 2008 | May | 40 |
| 2007 | May | 35 |
| 2006 | Jun | 35 |
| 2005 | Jun | 35 |
| 2004 | Apr | 33 |
| 2003 | Jun | 33 |
| 2002 | May | 33 |
| 2001 | Jul | 30 |
| 2000 | Jun | 27 |
| 1999 | Jun | 27 |
| 1998 | Jul | 27 |
| 1997 | Jun | 27 |