| Year | Month | Dividend (%) |
|---|---|---|
| 2023 | Nov | 400 |
| 2023 | Apr | 400 |
| 2022 | Nov | 550 |
| 2022 | Feb | 550 |
| 2021 | Nov | 550 |
| 2019 | Mar | 100 |
| 2019 | Feb | 200 |
| 2018 | May | 300 |
| 2017 | Feb | 400 |
| 2015 | May | 100 |
| 2015 | Mar | 200 |
| 2013 | Jan | 600 |
| 2012 | Mar | 400 |
| 2011 | Mar | 200 |
| 2010 | Apr | 200 |
| 2010 | Jan | 300 |
| 2009 | May | 300 |
| 2009 | Mar | 500 |
| 2008 | Sep | 200 |
| 2008 | Apr | 25 |
| 2007 | May | 70 |
| 2006 | Jul | 225 |
| 2006 | Apr | 225 |
| 2005 | Apr | 125 |
| 2004 | May | 75 |
| 2003 | May | 60 |
| 2002 | May | 50 |
| 2001 | Dec | 20 |
| 2001 | Jul | 70 |
| 2000 | Apr | 50 |
| 2000 | Jan | 20 |
| 1999 | May | 45 |
| 1998 | May | 35 |
| 1997 | May | 25 |
| 1997 | Jan | 15 |