| Current (2) |
| Chairman | 2011 |
| Deputy Chairman | 2011 |
| Former (25) |
| Board of Directors | 2007 – 2011 |
| Chairman | 2000 – 2002 |
| Board of Directors | 2007 – 2011 |
| Deputy Chairman | 1994 – 1998 |
| Chairman | 2007 – 2011 |
| Board of Directors | 1994 – 2006 |
| Board of Directors | 2002 – 2003 |
| Board of Directors | 1994 – 2005 |
| Board of Directors | 2000 – 2007 |
| Board of Directors | 2005 – 2007 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 2000 – 2003 |
| Chairman | 2003 – 2007 |
| Board of Directors | 1994 – 2000 |
| Board of Directors | 1994 – 1998 |
| Chairman | 2002 – 2003 |
| Board of Directors | 2003 – 2005 |
| Board of Directors | 2005 – 2006 |
| Board of Directors | 2007 – 2011 |
| Deputy Chairman | 1994 – 1998 |
| Board of Directors | 1994 – 2002 |
| Board of Directors | 2006 – 2007 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 2000 – 2000 |
| Board of Directors | 1998 – 2000 |