| Year | Month | Dividend (%) |
|---|---|---|
| 2022 | Aug | 650 |
| 2019 | May | 25 |
| 2019 | May | 25 |
| 2018 | May | 25 |
| 2017 | May | 25 |
| 2013 | May | 5 |
| 2012 | May | 10 |
| 2008 | Jul | 15 |
| 2007 | Aug | 35 |
| 2006 | Jul | 50 |
| 2005 | Jun | 50 |
| 2004 | Jul | 40 |
| 2003 | Jun | 25 |
| 2002 | Jun | 20 |
| 2001 | Jun | 30 |
| 2000 | Apr | 100 |
| 1999 | May | 15 |
| 1998 | Jul | 30 |
| 1997 | Jun | 30 |