| Year | Month | Dividend (%) |
|---|---|---|
| 2025 | May | 4,750 |
| 2024 | May | 4,100 |
| 2023 | May | 1,450 |
| 2023 | May | 1,800 |
| 2022 | May | 1,300 |
| 2022 | May | 1,450 |
| 2021 | May | 1,550 |
| 2021 | May | 1,200 |
| 2020 | Jun | 1,430 |
| 2020 | Jun | 1,070 |
| 2019 | May | 150 |
| 2019 | May | 500 |
| 2018 | May | 50 |
| 2018 | May | 500 |
| 2017 | May | 400 |
| 2016 | May | 350 |
| 2015 | May | 310 |
| 2014 | May | 230 |
| 2013 | Feb | 170 |
| 2012 | Feb | 170 |
| 2011 | Feb | 170 |
| 2010 | Feb | 170 |
| 2009 | Jan | 140 |
| 2008 | Feb | 175 |
| 2007 | Feb | 175 |
| 2006 | Jan | 175 |
| 2005 | Jan | 350 |
| 2004 | Feb | 350 |
| 2003 | Feb | 120 |
| 2002 | Feb | 100 |
| 2001 | Mar | 150 |
| 2000 | Mar | 41 |
| 1999 | Feb | 65 |
| 1998 | Mar | 80 |
| 1997 | Mar | 65 |