| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 1,100 |
| 2024 | May | 1,100 |
| 2023 | May | 1,000 |
| 2022 | May | 750 |
| 2021 | Apr | 400 |
| 2020 | Jun | 400 |
| 2019 | May | 500 |
| 2018 | May | 375 |
| 2017 | May | 260 |
| 2016 | Mar | 220 |
| 2015 | May | 230 |
| 2014 | May | 210 |
| 2013 | May | 210 |
| 2012 | Apr | 175 |
| 2011 | Apr | 125 |
| 2010 | May | 150 |
| 2009 | Apr | 100 |
| 2008 | Apr | 80 |
| 2007 | Apr | 50 |
| 2006 | Jun | 30 |
| 2005 | Jun | 20 |
| 2004 | Jun | 10 |
| 2003 | Jun | 10 |
| 2002 | Jun | 15 |
| 2001 | Jun | 26 |
| 2000 | Apr | 26 |
| 1999 | Jul | 26 |
| 1998 | Jun | 25 |
| 1997 | Jun | 33 |