| Board of Directors | 2000 – 2000 |
| Board of Directors | 1976 – 1998 |
| Board of Directors | 1999 – 2000 |
| Board of Directors | 1976 – 1990 |
| Board of Directors | 1998 – 1998 |
| Board of Directors | 1976 – 1992 |
| Board of Directors | 1999 – 2000 |
| Chairman | 1999 – 2003 |
| Board of Directors | 1976 – 1994 |
| Chairman | 1997 – 1998 |
| Board of Directors | 1999 – 2000 |
| Board of Directors | 1976 – 1987 |
| Board of Directors | 1998 – 1998 |
| Board of Directors | 2000 – 2000 |
| Board of Directors | 1976 – 1998 |
| Chairman | 1976 – 1995 |
| Board of Directors | 1976 – 1989 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 2000 – 2004 |
| Chairman | 2003 – 2004 |
| Board of Directors | 1999 – 2000 |
| Board of Directors | 1976 – 1995 |
| Board of Directors | 2003 – 2004 |
| Chairman | 1995 – 1997 |
| Board of Directors | 1976 – 1995 |
| Board of Directors | 1999 – 2000 |
| Chairman | 1998 – 1999 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 1998 – 1998 |