| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 5 |
| 2024 | Apr | 10 |
| 2023 | Apr | 20 |
| 2022 | May | 40 |
| 2021 | May | 40 |
| 2020 | Aug | 50 |
| 2019 | May | 175 |
| 2018 | May | 175 |
| 2017 | May | 175 |
| 2016 | Mar | 175 |
| 2015 | Apr | 150 |
| 2014 | May | 150 |
| 2013 | May | 150 |
| 2012 | Apr | 150 |
| 2011 | May | 125 |
| 2010 | Jun | 100 |
| 2009 | May | 100 |
| 2008 | Apr | 100 |
| 2007 | May | 100 |
| 2006 | Jul | 200 |
| 2006 | Jun | 75 |
| 2005 | Jun | 75 |
| 2004 | Jul | 25 |
| 2004 | Mar | 50 |
| 2003 | Aug | 20 |
| 2003 | Apr | 50 |
| 2002 | Jul | 60 |
| 2001 | Jun | 50 |
| 2000 | Apr | 13 |
| 2000 | Jan | 10 |
| 1999 | Oct | 10 |
| 1997 | Oct | 25 |
| 1997 | Jan | 20 |