| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 50 |
| 2024 | May | 50 |
| 2023 | May | 80 |
| 2022 | May | 65 |
| 2021 | Jun | 50 |
| 2020 | Feb | 50 |
| 2019 | May | 60 |
| 2018 | May | 60 |
| 2017 | May | 40 |
| 2016 | May | 8 |
| 2016 | Mar | 20 |
| 2015 | Jun | 22 |
| 2014 | Jun | 16 |
| 2013 | May | 12 |
| 2012 | Jul | 15 |
| 2011 | Sep | 8 |
| 2010 | Aug | 8 |
| 2009 | Sep | 4 |
| 2008 | Jul | 25 |
| 2007 | Jul | 10 |
| 2006 | Jul | 6 |
| 2005 | Jul | 6 |
| 2004 | Jul | 6 |
| 2003 | Jun | 8 |
| 2001 | Aug | 25 |
| 2000 | Nov | 25 |
| 1999 | Sep | 25 |
| 1998 | Aug | 25 |