| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 250 |
| 2024 | May | 250 |
| 2023 | May | 250 |
| 2022 | May | 150 |
| 2021 | Jun | 150 |
| 2020 | Jun | 150 |
| 2019 | May | 150 |
| 2018 | Jul | 150 |
| 2017 | May | 150 |
| 2016 | May | 50 |
| 2016 | Mar | 100 |
| 2015 | Jun | 100 |
| 2014 | May | 100 |
| 2013 | May | 100 |
| 2012 | May | 100 |
| 2011 | Jun | 100 |
| 2010 | Jul | 100 |
| 2009 | Jun | 100 |
| 2008 | Aug | 100 |
| 2007 | Aug | 100 |
| 2006 | Jul | 100 |
| 2005 | Aug | 100 |
| 2004 | Aug | 120 |
| 2003 | Aug | 150 |
| 2001 | Jun | 45 |
| 2000 | Apr | 45 |
| 1999 | Sep | 45 |
| 1998 | Aug | 40 |
| 1997 | Jul | 35 |