| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 169 |
| 2024 | May | 473 |
| 2023 | May | 321 |
| 2022 | May | 163 |
| 2021 | May | 300 |
| 2020 | Mar | 201 |
| 2019 | May | 400 |
| 2018 | May | 400 |
| 2017 | May | 507 |
| 2016 | Mar | 300 |
| 2016 | Feb | 300 |
| 2015 | May | 338 |
| 2014 | May | 160 |
| 2013 | May | 75 |
| 2012 | May | 135 |
| 2011 | May | 125 |
| 2010 | Feb | 100 |
| 2009 | Jun | 35 |
| 2008 | Jun | 35 |
| 2007 | Jun | 25 |
| 2006 | Jun | 20 |
| 2005 | May | 20 |
| 2004 | May | 33 |
| 2003 | May | 35 |
| 2002 | May | 35 |
| 2001 | Jun | 35 |
| 2000 | Jun | - |
| 2000 | Mar | 15 |
| 1999 | Dec | 20 |
| 1999 | Jul | 35 |
| 1998 | Jun | 25 |
| 1997 | Jun | 22 |