| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 700 |
| 2024 | May | 600 |
| 2023 | May | 500 |
| 2022 | May | 450 |
| 2021 | May | 350 |
| 2020 | Mar | 350 |
| 2019 | May | 350 |
| 2018 | May | 300 |
| 2017 | May | 300 |
| 2016 | May | 300 |
| 2015 | May | 350 |
| 2014 | May | 300 |
| 2013 | May | 350 |
| 2012 | May | 350 |
| 2011 | May | 450 |
| 2010 | May | 250 |
| 2009 | May | 250 |
| 2008 | May | 400 |
| 2007 | May | 130 |
| 2007 | Mar | 170 |
| 2006 | May | 170 |
| 2005 | May | 120 |
| 2004 | May | 120 |
| 2003 | May | 120 |
| 2002 | Aug | 50 |
| 2001 | Jul | 10 |
| 2000 | Mar | 35 |
| 1999 | Aug | 35 |
| 1998 | Jul | 35 |