| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 500 |
| 2024 | May | 450 |
| 2023 | May | 425 |
| 2022 | May | 425 |
| 2021 | Jun | 425 |
| 2020 | Jun | 400 |
| 2019 | May | 380 |
| 2018 | Apr | 340 |
| 2017 | Apr | 310 |
| 2016 | Apr | 275 |
| 2015 | Apr | 250 |
| 2014 | Apr | 225 |
| 2013 | Apr | 190 |
| 2012 | Apr | 180 |
| 2011 | Apr | 175 |
| 2010 | Apr | 150 |
| 2009 | Apr | 130 |
| 2008 | Apr | 100 |
| 2007 | May | 30 |
| 2007 | Mar | 50 |
| 2006 | Jun | 60 |
| 2005 | Jun | 50 |
| 2004 | Jun | 50 |
| 2003 | Jun | 55 |
| 2002 | May | 50 |
| 2001 | May | 40 |
| 2000 | Jun | 5 |
| 2000 | Mar | 25 |
| 1999 | May | 30 |
| 1998 | May | 25 |
| 1997 | Jun | 20 |