| Year | Month | Dividend (%) |
|---|---|---|
| 2022 | Apr | 125 |
| 2021 | Apr | 50 |
| 2019 | Apr | 125 |
| 2018 | Apr | 200 |
| 2017 | Apr | 110 |
| 2016 | Apr | 100 |
| 2015 | Apr | 100 |
| 2014 | Apr | 100 |
| 2013 | Apr | 80 |
| 2012 | Apr | 80 |
| 2011 | May | 80 |
| 2010 | Apr | 80 |
| 2009 | Apr | 80 |
| 2008 | May | 70 |
| 2007 | May | 40 |
| 2006 | May | 40 |
| 2005 | Apr | 70 |
| 2004 | May | 50 |
| 2002 | May | - |
| 2002 | Mar | 20 |
| 2001 | Jun | 20 |
| 2000 | Apr | 20 |
| 1999 | Jun | 10 |
| 1998 | Jul | 18 |
| 1997 | Jun | 18 |