| Year | Month | Dividend (%) |
|---|---|---|
| 2019 | Jul | 100 |
| 2018 | May | 100 |
| 2017 | Aug | 100 |
| 2016 | Feb | 100 |
| 2015 | Aug | 80 |
| 2014 | Aug | 60 |
| 2013 | Jul | 60 |
| 2012 | Jul | 60 |
| 2011 | Jul | 120 |
| 2010 | Jul | 110 |
| 2009 | Jun | 100 |
| 2008 | Aug | 100 |
| 2007 | Mar | 100 |
| 2006 | Aug | 100 |
| 2005 | Oct | 90 |
| 2004 | Jul | 45 |
| 2003 | Jul | 25 |
| 2002 | Sep | 30 |
| 2001 | Aug | 20 |
| 2001 | Jan | - |
| 1999 | Jul | - |