| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 215 |
| 2024 | May | 215 |
| 2023 | May | 50 |
| 2016 | May | 175 |
| 2015 | May | 210 |
| 2014 | May | 500 |
| 2013 | May | 500 |
| 2012 | May | 335 |
| 2011 | May | 260 |
| 2010 | May | 220 |
| 2009 | Jun | 169 |
| 2008 | Jun | 155 |
| 2007 | May | 115 |
| 2006 | May | 80 |
| 2005 | May | 80 |
| 2004 | May | 50 |
| 2004 | Feb | 50 |
| 2003 | Apr | 60 |
| 2002 | Apr | 50 |
| 2001 | Apr | 40 |
| 2000 | Jun | 35 |
| 1999 | Jun | 30 |