| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Feb | 200 |
| 2024 | Feb | 175 |
| 2023 | Feb | 150 |
| 2022 | Feb | 125 |
| 2021 | Feb | 85 |
| 2020 | Feb | 80 |
| 2019 | Feb | 60 |
| 2018 | Feb | 60 |
| 2017 | Feb | 55 |
| 2016 | Feb | 55 |
| 2015 | Feb | 55 |
| 2014 | Feb | 45 |
| 2013 | Oct | 10 |
| 2013 | Feb | 45 |
| 2012 | Oct | 10 |
| 2012 | Feb | 30 |
| 2011 | Oct | 10 |
| 2011 | Feb | 80 |
| 2010 | Oct | 20 |
| 2010 | Mar | 105 |
| 2009 | Oct | 20 |
| 2009 | Mar | 35 |
| 2008 | Oct | 20 |
| 2008 | Mar | 35 |
| 2007 | Oct | 20 |
| 2007 | Mar | 35 |
| 2006 | Nov | 20 |
| 2006 | Mar | 30 |
| 2005 | Oct | 15 |
| 2005 | Mar | 25 |
| 2004 | Oct | 15 |
| 2004 | Mar | 25 |
| 2003 | Oct | 10 |
| 2003 | Mar | 20 |
| 2002 | Oct | 10 |
| 2001 | Oct | 10 |
| 2000 | Nov | 10 |
| 2000 | Apr | 20 |
| 1999 | Oct | 10 |
| 1999 | Jun | 20 |
| 1998 | Nov | 10 |
| 1998 | Jun | 20 |
| 1997 | Jun | 20 |