| Board of Directors | 1998 – 2001 |
| Board of Directors | 1981 – 1995 |
| Board of Directors | 1981 – 1990 |
| Chairman | 1996 – 1998 |
| Board of Directors | 1981 – 1990 |
| Board of Directors | 1981 – 1989 |
| Board of Directors | 1981 – 1989 |
| Board of Directors | 1981 – 1996 |
| Board of Directors | 1981 – 1989 |
| Chairman | 1998 – 2001 |
| Board of Directors | 1981 – 1990 |
| Board of Directors | 1996 – 1998 |
| Board of Directors | 1996 – 1998 |
| Board of Directors | 1981 – 1989 |
| Board of Directors | 1998 – 2001 |
| Board of Directors | 1981 – 1998 |