| Year | Month | Dividend (%) |
|---|---|---|
| 2008 | Oct | 50 |
| 2008 | Apr | 125 |
| 2007 | Oct | 50 |
| 2007 | Apr | 125 |
| 2006 | Oct | 50 |
| 2006 | Apr | 250 |
| 2005 | Oct | 100 |
| 2005 | Apr | 150 |
| 2004 | Oct | 100 |
| 2004 | Apr | 140 |
| 2003 | Oct | 60 |
| 2003 | Apr | 110 |
| 2002 | Oct | 40 |
| 2002 | Apr | 35 |
| 2001 | Oct | 25 |
| 2001 | Apr | 22 |
| 2000 | Oct | 18 |
| 2000 | Apr | 15 |
| 1999 | Oct | 15 |
| 1999 | Apr | 18 |
| 1998 | Oct | 12 |
| 1998 | Apr | 20 |
| 1997 | Aug | 20 |