| Board of Directors | 1993 – 1993 |
| Chairman | 1976 – 1993 |
| Chairman | 1993 – 1993 |
| Board of Directors | 1976 – 1989 |
| Board of Directors | 1998 – 1999 |
| Chairman | 1976 – 1999 |
| Board of Directors | 1993 – 1993 |
| Board of Directors | 1999 – 1999 |
| Board of Directors | 1976 – 1999 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 1976 – 1993 |
| Board of Directors | 1976 – 1988 |
| Chairman | 1976 – 1991 |
| Deputy Chairman | 1976 – 1993 |
| Board of Directors | 1976 – 1989 |