| Board of Directors | 1994 – 2000 |
| Chairman | 2004 – 2004 |
| Board of Directors | 1981 – 1992 |
| Board of Directors | 1981 – 1997 |
| Board of Directors | 1981 – 1990 |
| Board of Directors | 1994 – 1996 |
| Board of Directors | 1981 – 1996 |
| Board of Directors | 1981 – 1996 |
| Board of Directors | 1994 – 1996 |
| Board of Directors | 1981 – 2004 |
| Board of Directors | 2004 – 2004 |
| Board of Directors | 1994 – 1995 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 2004 – 2004 |
| Board of Directors | 1993 – 2000 |
| Board of Directors | 1981 – 1990 |
| Board of Directors | 1996 – 2000 |
| Chairman | 1981 – 1994 |
| Board of Directors | 1995 – 1996 |
| Board of Directors | 1981 – 1995 |
| Board of Directors | 1981 – 1993 |
| Board of Directors | 2000 – 2001 |
| Chairman | 1994 – 2004 |
| Board of Directors | 1981 – 1992 |