| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Nov | 190 |
| 2025 | May | 295 |
| 2024 | Oct | 175 |
| 2024 | May | 250 |
| 2023 | Oct | 150 |
| 2023 | May | 165 |
| 2022 | Nov | 90 |
| 2022 | May | 100 |
| 2021 | Nov | 55 |
| 2021 | May | 70 |
| 2020 | Nov | 20 |
| 2020 | May | 85 |
| 2019 | Oct | 45 |
| 2019 | May | 95 |
| 2018 | Oct | 55 |
| 2018 | May | 90 |
| 2017 | Nov | 50 |
| 2017 | May | 85 |
| 2016 | Nov | 45 |
| 2016 | May | 75 |
| 2015 | Nov | 45 |
| 2015 | May | 60 |
| 2014 | Nov | 45 |
| 2014 | May | 50 |
| 2013 | Nov | 35 |
| 2013 | May | 45 |
| 2012 | Nov | 30 |
| 2012 | May | 60 |
| 2011 | Nov | 40 |
| 2011 | May | 70 |
| 2010 | Nov | 30 |
| 2010 | May | 55 |
| 2009 | Oct | 30 |
| 2009 | May | 70 |
| 2008 | May | 40 |
| 2008 | Jan | 30 |
| 2007 | Mar | 40 |
| 2006 | Oct | 30 |
| 2006 | May | 40 |
| 2005 | Oct | 30 |
| 2005 | May | 45 |
| 2004 | May | 35 |
| 2003 | Oct | 25 |
| 2003 | May | 50 |
| 2002 | May | 30 |
| 2001 | May | 25 |
| 2000 | Apr | 20 |
| 1999 | May | 10 |
| 1998 | May | 25 |
| 1997 | Jun | 50 |