| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 50 |
| 2025 | Feb | 250 |
| 2024 | May | 250 |
| 2024 | May | 50 |
| 2023 | May | 40 |
| 2022 | May | 100 |
| 2022 | May | 40 |
| 2021 | May | 25 |
| 2020 | May | 20 |
| 2019 | May | 40 |
| 2018 | Oct | 200 |
| 2018 | May | 40 |
| 2017 | May | 30 |
| 2016 | May | 25 |
| 2015 | May | 10 |
| 2015 | Mar | 290 |
| 2014 | May | 25 |
| 2013 | May | 15 |
| 2012 | May | 5 |
| 2011 | Nov | 15 |
| 2011 | Jan | 15 |
| 2009 | Dec | 15 |
| 2008 | Dec | 25 |
| 2007 | Dec | 30 |
| 2007 | Jan | 30 |
| 2006 | Jan | 35 |
| 2004 | Nov | 10 |
| 2004 | Apr | 260 |
| 2004 | Mar | 20 |
| 2003 | Mar | 18 |
| 2002 | Mar | 15 |
| 2001 | Mar | 15 |
| 2000 | May | 15 |
| 1999 | Mar | 12 |
| 1998 | Mar | 8 |
| 1997 | Feb | 10 |