| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 50 |
| 2024 | Apr | 50 |
| 2023 | Apr | 50 |
| 2022 | Apr | 50 |
| 2019 | Apr | 50 |
| 2017 | Apr | 250 |
| 2016 | Apr | 250 |
| 2015 | Apr | 230 |
| 2014 | Apr | 200 |
| 2013 | Apr | 180 |
| 2012 | Apr | 160 |
| 2011 | Apr | 140 |
| 2010 | Apr | 120 |
| 2009 | Apr | 100 |
| 2008 | Apr | 60 |
| 2007 | Apr | 45 |
| 2006 | Apr | 35 |
| 2005 | Apr | 28 |
| 2004 | Apr | 25 |
| 2003 | May | 22 |
| 2002 | May | 20 |
| 2001 | May | 15 |
| 2000 | May | 12 |
| 1999 | May | 10 |