| Board of Directors | 1980 – 1990 |
| Board of Directors | 1980 – 1990 |
| Board of Directors | 1980 – 1988 |
| Board of Directors | 1980 – 1987 |
| Chairman | 1994 – 1994 |
| Board of Directors | 1980 – 1988 |
| Board of Directors | 1980 – 1997 |
| Board of Directors | 1980 – 2000 |
| Board of Directors | 1980 – 1988 |
| Board of Directors | 2001 – 2001 |
| Chairman | 1980 – 1994 |
| Board of Directors | 1980 – 1992 |
| Chairman | 2001 – 2001 |
| Chairman | 1980 – 1989 |
| Board of Directors | 1980 – 1989 |
| Board of Directors | 1980 – 1989 |
| Board of Directors | 2000 – 2001 |
| Chairman | 1994 – 2001 |
| Board of Directors | 1997 – 2001 |
| Board of Directors | 2001 – 2001 |