| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Aug | 60 |
| 2025 | May | 50 |
| 2024 | Aug | 90 |
| 2024 | May | 60 |
| 2023 | Jul | 75 |
| 2023 | May | 50 |
| 2022 | May | 45 |
| 2020 | Mar | 25 |
| 2019 | Apr | 100 |
| 2019 | Feb | 40 |
| 2018 | Apr | 85 |
| 2018 | Jan | 40 |
| 2017 | Apr | 85 |
| 2016 | May | 75 |
| 2015 | Apr | 60 |
| 2014 | Apr | 50 |
| 2013 | Apr | 40 |
| 2012 | May | 28 |
| 2011 | May | 20 |
| 2010 | Apr | 20 |
| 2008 | Jul | 13 |
| 2007 | Aug | 13 |
| 2006 | Aug | 13 |
| 2005 | Aug | 13 |
| 2004 | Aug | 10 |
| 2003 | Sep | 10 |
| 2002 | Aug | 10 |
| 2001 | Jul | 10 |
| 2000 | Apr | 10 |
| 1999 | Jul | 10 |
| 1998 | Aug | 10 |