| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | Oct | 50 |
| 2025 | May | 105 |
| 2024 | May | 165 |
| 2024 | Jan | 150 |
| 2022 | May | 140 |
| 2021 | May | 228 |
| 2020 | Jun | 98 |
| 2019 | May | 94 |
| 2019 | Feb | 65 |
| 2018 | May | 25 |
| 2018 | Feb | 145 |
| 2017 | May | 11 |
| 2017 | Mar | 64 |
| 2017 | Feb | 225 |
| 2016 | May | 160 |
| 2016 | Mar | 70 |
| 2016 | Feb | 115 |
| 2015 | May | 245 |
| 2014 | May | 155 |
| 2013 | May | 85 |
| 2012 | May | 85 |
| 2011 | May | 140 |
| 2010 | May | 120 |
| 2009 | Jun | 53 |
| 2008 | May | 30 |
| 2007 | May | 120 |
| 2006 | Dec | 60 |
| 2006 | May | 30 |
| 2005 | May | 100 |
| 2004 | Nov | 50 |
| 2004 | Jun | 160 |
| 2003 | Dec | 60 |
| 2003 | Jun | 180 |
| 2003 | Jan | 20 |
| 2002 | May | 100 |
| 2001 | May | 100 |
| 2000 | Jul | 30 |
| 2000 | Apr | 80 |
| 1999 | Jun | 110 |
| 1997 | Jun | 40 |