| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 100 |
| 2024 | Apr | 1,500 |
| 2023 | Apr | 1,500 |
| 2022 | Apr | 1,400 |
| 2021 | Apr | 1,140 |
| 2020 | May | 1,030 |
| 2019 | May | 950 |
| 2018 | Apr | 775 |
| 2017 | Apr | 750 |
| 2016 | Apr | 700 |
| 2015 | Apr | 700 |
| 2014 | Apr | 700 |
| 2013 | Apr | 625 |
| 2012 | Apr | 650 |
| 2011 | Apr | 450 |
| 2010 | Apr | 300 |
| 2009 | Apr | 300 |
| 2008 | Apr | 200 |
| 2007 | Apr | 200 |
| 2006 | Apr | 125 |
| 2005 | Apr | 125 |
| 2004 | May | 60 |
| 2003 | Apr | 55 |
| 2002 | Apr | 45 |
| 2001 | Apr | 25 |
| 2000 | Jun | 10 |
| 1998 | Jul | 10 |