| Former (16) |
| Board of Directors | 2001 – 2006 |
| Chairman | 2007 – 2008 |
| Chairman | 1999 – 2004 |
| Board of Directors | 1991 – 1991 |
| Board of Directors | 1991 – 1992 |
| Board of Directors | 1991 – 1995 |
| Board of Directors | 1991 – 1992 |
| Board of Directors | 2002 – 2007 |
| Board of Directors | 2007 – 2008 |
| Chairman | 2004 – 2007 |
| Board of Directors | 1991 – 1999 |
| Board of Directors | 2006 – 2007 |
| Board of Directors | 1991 – 1992 |
| Board of Directors | 2007 – 2008 |
| Board of Directors | 1991 – 1992 |
| Chairman | 1991 – 1991 |