| Year | Month | Dividend (%) |
|---|---|---|
| 2015 | Jul | 44 |
| 2015 | Apr | 275 |
| 2014 | Apr | 225 |
| 2013 | Apr | 175 |
| 2012 | Apr | 125 |
| 2011 | Apr | 200 |
| 2010 | Apr | 200 |
| 2009 | Apr | 150 |
| 2008 | Apr | 110 |
| 2007 | Apr | 80 |
| 2006 | Apr | 50 |
| 2005 | Apr | 45 |
| 2004 | Jul | 55 |
| 2003 | May | 40 |
| 2002 | Jun | 40 |
| 2001 | Aug | 35 |
| 2000 | Aug | 20 |
| 1999 | Aug | 10 |
| 1998 | Jul | 10 |
| 1997 | Aug | 8 |