| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 500 |
| 2024 | May | 500 |
| 2023 | May | 500 |
| 2022 | May | 250 |
| 2022 | May | 250 |
| 2021 | May | 200 |
| 2021 | May | 250 |
| 2020 | Jun | 200 |
| 2019 | May | 350 |
| 2018 | May | 310 |
| 2017 | May | 275 |
| 2016 | May | 225 |
| 2015 | May | 180 |
| 2014 | May | 210 |
| 2013 | May | 225 |
| 2012 | May | 225 |
| 2011 | May | 200 |
| 2010 | May | 300 |
| 2009 | May | 300 |
| 2008 | Apr | 300 |
| 2007 | Mar | 275 |
| 2006 | Apr | 200 |
| 2005 | Apr | 160 |
| 2004 | Apr | 140 |
| 2003 | Apr | 100 |
| 2002 | May | 90 |
| 2001 | Apr | 80 |
| 2000 | May | 10 |
| 2000 | Jan | 60 |
| 1999 | Jul | 68 |
| 1998 | May | 68 |
| 1997 | Apr | 65 |