| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Feb | 20 |
| 2025 | Jan | 10 |
| 2024 | Jan | 10 |
| 2023 | Jan | 10 |
| 2022 | Jan | 10 |
| 2020 | Oct | 25 |
| 2020 | Feb | 20 |
| 2019 | May | 10 |
| 2018 | May | 10 |
| 2017 | May | 10 |
| 2016 | Mar | 30 |
| 2016 | Jan | 15 |
| 2015 | Oct | 23 |
| 2015 | May | 30 |
| 2015 | Jan | 50 |
| 2014 | Nov | 50 |
| 2014 | Apr | 55 |
| 2014 | Jan | 45 |
| 2013 | Nov | 30 |
| 2013 | May | 40 |
| 2013 | Jan | 30 |
| 2012 | Oct | 30 |
| 2012 | May | 30 |
| 2012 | Jan | 20 |
| 2011 | May | 25 |
| 2011 | Jan | 25 |
| 2010 | May | 50 |
| 2009 | May | 30 |
| 2008 | May | 18 |
| 2007 | Mar | 12 |
| 2006 | May | 15 |
| 2005 | Apr | 16 |
| 2004 | Oct | 14 |
| 2004 | Jun | 18 |
| 2003 | Oct | 12 |
| 2003 | Apr | 15 |
| 2002 | Apr | - |
| 2001 | Oct | 10 |
| 2001 | May | 15 |
| 2000 | Apr | 8 |
| 1999 | May | 7 |
| 1998 | May | 11 |
| 1997 | Jul | 22 |