| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 1,300 |
| 2024 | May | 1,200 |
| 2023 | May | 1,000 |
| 2022 | May | 600 |
| 2021 | Jul | 900 |
| 2020 | Aug | 800 |
| 2019 | May | 800 |
| 2018 | May | 700 |
| 2017 | May | 700 |
| 2016 | May | 600 |
| 2015 | May | 450 |
| 2014 | May | 600 |
| 2013 | May | 500 |
| 2012 | May | 400 |
| 2011 | May | 400 |
| 2010 | May | 400 |
| 2009 | Jun | 200 |
| 2008 | May | 100 |
| 2007 | May | 70 |
| 2006 | May | 50 |
| 2005 | May | 30 |
| 2004 | Jun | 10 |
| 2002 | Jun | 10 |
| 2001 | Jun | 30 |
| 2000 | Jun | 10 |
| 2000 | Feb | 30 |
| 1999 | Jul | 30 |
| 1999 | Mar | 20 |
| 1998 | Jun | 20 |
| 1998 | Feb | 20 |