| Year | Month | Dividend (%) |
|---|---|---|
| 2022 | Aug | 3 |
| 2017 | May | 2 |
| 2016 | May | 2 |
| 2015 | Jun | 2 |
| 2014 | Jun | 2 |
| 2013 | Jun | 6 |
| 2012 | Aug | 6 |
| 2011 | Aug | 5 |
| 2010 | Aug | 5 |
| 2009 | Aug | 5 |
| 2008 | Aug | 5 |
| 2007 | Aug | 10 |
| 2006 | Aug | 15 |
| 2005 | Aug | 15 |
| 2004 | Aug | 10 |
| 2003 | Aug | 2 |
| 2002 | Aug | 2 |
| 2001 | Aug | - |
| 2000 | Apr | 20 |
| 1999 | Jul | 5 |
| 1998 | Aug | 9 |
| 1997 | Aug | 10 |