| Year | Month | Dividend (%) |
|---|---|---|
| 2012 | Nov | 5 |
| 2011 | May | 8 |
| 2010 | May | 8 |
| 2009 | May | 15 |
| 2009 | Jan | 15 |
| 2008 | Oct | 15 |
| 2008 | Aug | 5 |
| 2008 | May | 20 |
| 2008 | Jan | 15 |
| 2007 | Oct | 15 |
| 2007 | May | 15 |
| 2007 | Jan | 15 |
| 2006 | Oct | 15 |
| 2006 | Apr | 15 |
| 2006 | Jan | 15 |
| 2005 | Oct | 15 |
| 2005 | Apr | 20 |
| 2004 | Oct | 10 |
| 2004 | Apr | 6 |
| 2004 | Feb | 10 |
| 2003 | May | 12 |
| 2002 | May | 12 |
| 2001 | Apr | 15 |
| 2000 | Aug | 14 |
| 1999 | Jul | 14 |
| 1998 | Jun | 21 |
| 1997 | Jun | 21 |