| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Apr | 200 |
| 2024 | Apr | 180 |
| 2023 | May | 160 |
| 2022 | May | 150 |
| 2021 | Jun | 100 |
| 2020 | Feb | 50 |
| 2019 | Apr | 50 |
| 2018 | Apr | 45 |
| 2017 | Jun | 70 |
| 2016 | May | 10 |
| 2016 | Mar | 25 |
| 2015 | Oct | 25 |
| 2015 | Apr | 38 |
| 2014 | Nov | 32 |
| 2014 | May | 70 |
| 2013 | Oct | 50 |
| 2013 | Apr | 20 |
| 2013 | Jan | 55 |
| 2012 | Apr | 110 |
| 2011 | Apr | 100 |
| 2010 | Apr | 65 |
| 2009 | May | 60 |
| 2008 | Jun | 35 |
| 2007 | Jun | 50 |
| 2006 | Jun | 30 |
| 2005 | May | 30 |
| 2005 | Mar | 50 |
| 2004 | May | 30 |
| 2003 | May | 55 |
| 2002 | May | 40 |
| 2001 | May | 35 |
| 1999 | Jul | 23 |
| 1998 | Sep | 23 |
| 1997 | Jul | 23 |