| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 200 |
| 2024 | Apr | 200 |
| 2023 | May | 200 |
| 2022 | Jan | 200 |
| 2021 | Jan | 200 |
| 2020 | Feb | 250 |
| 2019 | Nov | 160 |
| 2019 | Apr | 80 |
| 2018 | Nov | 160 |
| 2018 | May | 80 |
| 2017 | Oct | 160 |
| 2017 | May | 80 |
| 2016 | Oct | 160 |
| 2016 | Apr | 80 |
| 2015 | Oct | 160 |
| 2015 | Apr | 70 |
| 2014 | Jul | 150 |
| 2014 | Apr | 70 |
| 2013 | Oct | 110 |
| 2013 | Apr | 60 |
| 2012 | Oct | 100 |
| 2012 | Apr | 60 |
| 2011 | Oct | 90 |
| 2011 | Apr | 60 |
| 2010 | Oct | 90 |
| 2010 | Apr | 40 |
| 2009 | Oct | 60 |
| 2009 | Apr | 20 |
| 2009 | Jan | 40 |
| 2008 | Apr | 40 |
| 2007 | Apr | 35 |
| 2006 | Apr | 30 |
| 2005 | Jul | 25 |
| 2004 | Apr | 40 |
| 2003 | Apr | 40 |
| 2002 | May | 35 |
| 2000 | May | 32 |
| 1999 | May | 35 |
| 1997 | May | 37 |