| Year | Month | Dividend (%) |
|---|---|---|
| 2015 | Apr | 200 |
| 2015 | Mar | 100 |
| 2014 | Apr | 125 |
| 2013 | Apr | 100 |
| 2012 | Oct | 60 |
| 2012 | Jan | 40 |
| 2011 | Apr | 90 |
| 2010 | Apr | 35 |
| 2010 | Jan | 35 |
| 2009 | Apr | 25 |
| 2009 | Jan | 30 |
| 2008 | Apr | 30 |
| 2007 | Mar | 25 |
| 2007 | Jan | 20 |
| 2006 | Apr | 25 |
| 2005 | Apr | 35 |
| 2004 | May | 35 |
| 2003 | May | 35 |
| 2002 | Apr | 35 |
| 2001 | Apr | 30 |
| 2000 | Apr | 30 |