| Year | Month | Dividend (%) |
|---|---|---|
| 2019 | Apr | 250 |
| 2018 | Oct | 250 |
| 2018 | May | 150 |
| 2017 | Nov | 150 |
| 2017 | May | 150 |
| 2016 | Nov | 150 |
| 2016 | Mar | 150 |
| 2015 | Nov | 150 |
| 2015 | May | 180 |
| 2014 | Nov | 180 |
| 2014 | May | 300 |
| 2013 | Oct | 120 |
| 2013 | May | 120 |
| 2013 | May | 500 |
| 2012 | Oct | 100 |
| 2012 | May | 100 |
| 2011 | Nov | 100 |
| 2011 | Jun | 100 |
| 2010 | Oct | 100 |
| 2010 | May | 75 |
| 2009 | Oct | 100 |
| 2009 | Jun | 120 |
| 2008 | Oct | 120 |
| 2008 | Aug | 150 |
| 2008 | May | 1,800 |
| 2007 | Oct | 120 |
| 2007 | May | 25 |
| 2007 | Mar | 100 |
| 2006 | Oct | 100 |
| 2006 | May | 100 |
| 2005 | Nov | 1,200 |
| 2005 | May | 130 |
| 2004 | Oct | 100 |
| 2004 | May | 100 |
| 2004 | Jan | 100 |
| 2003 | May | 125 |
| 2002 | May | 80 |
| 2001 | May | 100 |
| 2000 | Mar | 100 |
| 1999 | May | 90 |
| 1998 | Jun | 60 |
| 1997 | Jul | 40 |