| Former (20) |
| Chairman | 1999 – 2000 |
| Board of Directors | 2004 – 2005 |
| Chairman | 1990 – 1998 |
| Board of Directors | 1990 – 1991 |
| Board of Directors | 1990 – 1991 |
| Chairman | 1998 – 1999 |
| Board of Directors | 1990 – 1991 |
| Board of Directors | 1990 – 1997 |
| Chairman | 2004 – 2005 |
| Chairman | 1999 – 1999 |
| Board of Directors | 1990 – 1994 |
| Chairman | 1998 – 1998 |
| Board of Directors | 1990 – 1994 |
| Chairman | 1990 – 1994 |
| Chairman | 2004 – 2004 |
| Board of Directors | 1990 – 1994 |
| Board of Directors | 1999 – 2001 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 2004 – 2004 |
| Chairman | 2000 – 2001 |