| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 200 |
| 2024 | May | 50 |
| 2024 | Apr | 100 |
| 2024 | Feb | 150 |
| 2023 | May | 125 |
| 2023 | Mar | 100 |
| 2022 | May | 100 |
| 2021 | Jul | 75 |
| 2017 | Jun | 38 |
| 2016 | May | 38 |
| 2016 | Mar | 38 |
| 2015 | May | 38 |
| 2015 | Feb | 38 |
| 2014 | May | 15 |
| 2013 | May | 20 |
| 2012 | May | 20 |
| 2011 | May | 15 |
| 2010 | May | 15 |
| 2009 | Jul | 15 |
| 2008 | Jun | 30 |
| 2007 | Jul | 30 |
| 2006 | Jul | 30 |
| 2005 | Jul | 30 |
| 2004 | Jul | 30 |
| 2003 | Mar | 30 |
| 2001 | Jul | 20 |
| 2000 | Mar | 15 |
| 1998 | Jun | 10 |
| 1997 | Aug | 5 |