| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 300 |
| 2024 | May | 300 |
| 2023 | May | 225 |
| 2022 | May | 75 |
| 2022 | May | 135 |
| 2021 | May | 108 |
| 2020 | Feb | 135 |
| 2019 | May | 81 |
| 2019 | Jan | 25 |
| 2018 | May | 81 |
| 2017 | May | 81 |
| 2016 | Mar | 81 |
| 2015 | May | 81 |
| 2014 | May | 81 |
| 2014 | Jan | 30 |
| 2013 | May | 81 |
| 2012 | May | 81 |
| 2011 | May | 63 |
| 2010 | Jan | 72 |
| 2009 | Jan | 90 |
| 2008 | Jan | 99 |
| 2007 | Mar | 90 |
| 2006 | Oct | 45 |
| 2006 | Mar | 63 |
| 2005 | Apr | 72 |
| 2004 | Nov | 36 |
| 2004 | Jul | 23 |
| 2003 | Sep | 23 |
| 1999 | Aug | - |
| 1998 | Jul | 12 |
| 1997 | Jul | 30 |