| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 350 |
| 2024 | May | 350 |
| 2023 | May | 270 |
| 2022 | May | 135 |
| 2021 | Jun | 70 |
| 2020 | Jun | 60 |
| 2020 | Mar | 175 |
| 2019 | May | 350 |
| 2018 | May | 230 |
| 2017 | May | 145 |
| 2016 | Mar | 120 |
| 2015 | May | 55 |
| 2014 | May | 35 |
| 2013 | May | 45 |
| 2012 | May | 60 |
| 2011 | May | 60 |
| 2010 | May | 30 |
| 2009 | Jul | 10 |
| 2008 | Jun | 40 |
| 2007 | Jun | 45 |
| 2006 | May | 35 |
| 2005 | May | 30 |
| 2004 | May | 22 |
| 2003 | Jun | 15 |
| 2002 | Jun | 12 |
| 2001 | Jun | 10 |
| 2000 | Aug | 22 |
| 1999 | Aug | 22 |
| 1998 | Jul | 22 |
| 1997 | May | 22 |