| Year | Month | Dividend (%) |
|---|---|---|
| 2016 | May | 5 |
| 2015 | Apr | 20 |
| 2014 | Jan | 11 |
| 2013 | May | 50 |
| 2012 | May | 55 |
| 2011 | May | 55 |
| 2010 | Apr | 50 |
| 2009 | May | 45 |
| 2008 | Apr | 20 |
| 2008 | Feb | 20 |
| 2007 | Apr | 18 |
| 2007 | Mar | 20 |
| 2006 | May | 35 |
| 2005 | Apr | 15 |
| 2005 | Jan | 15 |
| 2004 | Apr | 14 |
| 2003 | Nov | 14 |
| 2003 | May | 24 |
| 2002 | May | 14 |
| 2001 | Jun | 10 |