| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 300 |
| 2024 | Apr | 275 |
| 2023 | Apr | 250 |
| 2022 | May | 200 |
| 2013 | May | 15 |
| 2011 | May | 100 |
| 2010 | May | 100 |
| 2009 | May | 100 |
| 2008 | May | 100 |
| 2007 | May | 75 |
| 2006 | May | 55 |
| 2005 | May | 30 |
| 2004 | May | 15 |
| 2003 | May | 10 |
| 2002 | May | 10 |
| 2001 | Jul | 50 |
| 2000 | Mar | 25 |
| 1999 | Jun | 50 |
| 1997 | Jul | 30 |