| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 275 |
| 2024 | May | 110 |
| 2023 | May | 225 |
| 2022 | May | 450 |
| 2021 | May | 225 |
| 2020 | Mar | 200 |
| 2019 | May | 375 |
| 2018 | May | 250 |
| 2017 | Jul | 120 |
| 2016 | May | 90 |
| 2015 | May | 80 |
| 2014 | Oct | 60 |
| 2014 | May | 75 |
| 2013 | May | 60 |
| 2012 | May | 40 |
| 2011 | May | 75 |
| 2010 | May | 40 |
| 2009 | May | 10 |
| 2008 | Jul | 20 |
| 2007 | May | 10 |
| 2005 | May | 10 |
| 2004 | Jun | 20 |
| 2003 | Oct | 30 |
| 2002 | Sep | 30 |
| 2001 | Jul | 25 |
| 2000 | Apr | 75 |
| 1999 | May | 75 |
| 1998 | Jun | 60 |
| 1997 | Jun | 75 |