| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 21 |
| 2024 | May | 15 |
| 2023 | May | 10 |
| 2015 | May | 8 |
| 2014 | Apr | 3 |
| 2014 | Jan | 7 |
| 2013 | Apr | 35 |
| 2012 | Apr | 15 |
| 2012 | Jan | 20 |
| 2011 | Apr | 35 |
| 2010 | Apr | 30 |
| 2009 | Apr | 25 |
| 2008 | Apr | 20 |
| 2007 | Apr | 15 |
| 2006 | Apr | 15 |
| 2005 | Apr | 8 |
| 2004 | Nov | 15 |
| 2003 | May | 15 |
| 2002 | May | - |
| 2001 | May | 45 |
| 2000 | Mar | 45 |
| 1999 | May | 45 |
| 1997 | Jun | 35 |