| Year | Month | Dividend (%) |
|---|---|---|
| 2026 | May | 1,100 |
| 2025 | May | 1,050 |
| 2024 | May | 1,000 |
| 2023 | May | 950 |
| 2022 | May | 900 |
| 2021 | May | 850 |
| 2020 | May | 750 |
| 2019 | May | 450 |
| 2018 | May | 320 |
| 2017 | May | 100 |
| 2016 | May | 100 |
| 2015 | May | 125 |
| 2014 | Feb | 100 |
| 2013 | Feb | 100 |
| 2012 | Feb | 100 |
| 2011 | Feb | 100 |
| 2010 | Feb | 100 |
| 2008 | Feb | 100 |
| 2007 | Feb | 100 |
| 2006 | Feb | 80 |
| 2005 | Feb | 50 |
| 2004 | May | 80 |
| 2003 | Jun | 60 |
| 2002 | Jun | 60 |
| 2001 | Jun | 60 |
| 2000 | Apr | 60 |
| 1999 | Jun | 40 |
| 1997 | Jun | 20 |