| Year | Month | Dividend (%) |
|---|---|---|
| 2019 | Jan | 150 |
| 2018 | Jan | 150 |
| 2017 | Jan | 100 |
| 2016 | Mar | 100 |
| 2016 | Mar | 100 |
| 2015 | May | 60 |
| 2014 | May | 200 |
| 2014 | May | 50 |
| 2013 | May | 30 |
| 2012 | Aug | 30 |
| 2011 | May | 25 |
| 2010 | Apr | 25 |
| 2009 | Jul | 25 |
| 2008 | Jul | 25 |
| 2007 | Aug | 25 |
| 2006 | Jul | 50 |
| 2005 | Jul | 50 |
| 2004 | Jul | 50 |
| 2003 | Aug | 45 |
| 2002 | Jul | 40 |
| 2001 | Aug | 40 |
| 2000 | May | - |
| 1999 | May | 24 |
| 1998 | Jun | 18 |
| 1997 | Nov | 18 |