| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 5 |
| 2023 | May | 15 |
| 2023 | Feb | 10 |
| 2022 | May | 20 |
| 2014 | May | 18 |
| 2013 | May | 18 |
| 2012 | Aug | 18 |
| 2011 | May | 18 |
| 2010 | May | 18 |
| 2009 | May | 15 |
| 2008 | May | 15 |
| 2007 | May | 5 |
| 2007 | Apr | 10 |
| 2006 | May | 15 |
| 2005 | Jun | 12 |
| 2004 | Jun | 10 |
| 2003 | Jun | 10 |
| 2002 | Aug | - |
| 2001 | Jul | - |
| 1999 | Aug | - |
| 1997 | Mar | 15 |