| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Feb | 40 |
| 2023 | Feb | 20 |
| 2022 | Feb | 20 |
| 2022 | Feb | 30 |
| 2021 | Feb | 60 |
| 2020 | Feb | 45 |
| 2017 | Feb | 40 |
| 2016 | Feb | 40 |
| 2014 | Feb | 40 |
| 2013 | Feb | 40 |
| 2012 | Feb | 40 |
| 2011 | Feb | 50 |
| 2010 | Feb | 40 |
| 2009 | Feb | 35 |
| 2008 | Mar | 35 |
| 2007 | Mar | 35 |
| 2006 | Mar | 35 |
| 2005 | Mar | 35 |
| 2004 | Mar | 35 |
| 2003 | Mar | 35 |
| 2002 | Feb | 40 |
| 2001 | Mar | 42 |
| 2000 | Mar | 40 |
| 1999 | Feb | 40 |
| 1998 | Mar | 40 |
| 1997 | Mar | 40 |