| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 250 |
| 2024 | Apr | 250 |
| 2023 | Apr | 200 |
| 2022 | Apr | 100 |
| 2020 | May | 75 |
| 2019 | Apr | 150 |
| 2018 | May | 150 |
| 2017 | Jun | 150 |
| 2016 | Jul | 200 |
| 2015 | May | 200 |
| 2014 | Apr | 200 |
| 2013 | May | 200 |
| 2012 | May | 160 |
| 2011 | May | 130 |
| 2010 | May | 130 |
| 2009 | Jun | 85 |
| 2008 | May | 120 |
| 2007 | Jun | 100 |
| 2006 | May | 85 |
| 2005 | May | 85 |
| 2004 | May | 80 |
| 2003 | Jun | 75 |
| 2002 | Jul | 75 |
| 2001 | Jul | 90 |
| 2000 | Mar | 75 |
| 1999 | Jul | 60 |
| 1997 | Jun | 60 |