| Year | Month | Dividend (%) |
|---|---|---|
| 2021 | Jun | 10 |
| 2020 | Mar | 10 |
| 2019 | May | 10 |
| 2018 | May | 10 |
| 2017 | May | 10 |
| 2016 | May | 5 |
| 2013 | May | 1 |
| 2012 | Jul | 1 |
| 2011 | Jul | 1 |
| 2010 | Jul | 1 |
| 2009 | Jul | 1 |
| 2008 | Jul | 1 |
| 2006 | Jul | 1 |
| 2005 | Aug | 1 |
| 2004 | Jul | 1 |
| 2003 | Jul | 1 |
| 2002 | Sep | 1 |
| 2001 | Aug | - |
| 2000 | Jul | 1 |
| 1999 | Aug | 1 |
| 1998 | Aug | 1 |