| Board of Directors | 1985 – 1998 |
| Board of Directors | 1985 – 1990 |
| Board of Directors | 1985 – 1993 |
| Chairman | 1998 – 2004 |
| Board of Directors | 1985 – 1992 |
| Board of Directors | 1996 – 2005 |
| Chairman | 2004 – 2005 |
| Board of Directors | 1994 – 1996 |
| Board of Directors | 1985 – 1989 |
| Board of Directors | 1985 – 1990 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 1985 – 1996 |
| Board of Directors | 1985 – 1994 |
| Board of Directors | 1996 – 1998 |
| Board of Directors | 1985 – 1992 |
| Board of Directors | 1985 – 1989 |
| Board of Directors | 1998 – 2004 |
| Board of Directors | 1985 – 1990 |
| Board of Directors | 1985 – 1992 |
| Board of Directors | 1985 – 1989 |