| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 418 |
| 2024 | May | 380 |
| 2023 | May | 275 |
| 2022 | May | 143 |
| 2017 | May | 60 |
| 2015 | May | 160 |
| 2014 | May | 105 |
| 2014 | Jan | 110 |
| 2013 | May | 215 |
| 2012 | May | 170 |
| 2011 | Apr | 165 |
| 2010 | Apr | 150 |
| 2009 | Apr | 90 |
| 2008 | May | 80 |
| 2007 | Apr | 30 |
| 2007 | Mar | 30 |
| 2006 | Apr | 50 |
| 2005 | May | 32 |
| 2005 | Jan | 18 |
| 2004 | May | 35 |
| 2003 | Nov | 30 |
| 2003 | May | 40 |
| 2003 | Feb | 20 |
| 2002 | Jun | 40 |
| 2001 | Jun | 40 |
| 2000 | Jun | 15 |
| 2000 | May | 25 |
| 1999 | May | 30 |
| 1998 | May | 30 |
| 1997 | May | 26 |