| Year | Month | Dividend (%) |
|---|---|---|
| 2024 | May | 100 |
| 2024 | Jan | 100 |
| 2023 | May | 175 |
| 2022 | May | 100 |
| 2018 | Apr | 100 |
| 2018 | Jan | 50 |
| 2017 | Apr | 30 |
| 2017 | Jan | 15 |
| 2015 | Apr | 10 |
| 2014 | Apr | 10 |
| 2013 | Apr | 25 |
| 2012 | Apr | 40 |
| 2011 | Apr | 40 |
| 2010 | Apr | 20 |
| 2009 | Apr | 30 |
| 2008 | Apr | 30 |
| 2007 | Jun | 15 |
| 2006 | Nov | 15 |
| 2005 | Oct | 5 |
| 2004 | Aug | 10 |
| 2003 | Jul | 35 |
| 2002 | Mar | 17 |
| 2001 | Jul | 15 |
| 2000 | May | 20 |
| 1999 | Jul | 25 |
| 1997 | Jul | 30 |