| Board of Directors | 1982 – 1988 |
| Board of Directors | 1998 – 2002 |
| Board of Directors | 1998 – 1999 |
| Board of Directors | 2001 – 2002 |
| Board of Directors | 1982 – 1988 |
| Board of Directors | 1982 – 1990 |
| Board of Directors | 1982 – 1990 |
| Deputy Chairman | 2000 – 2001 |
| Board of Directors | 1982 – 1994 |
| Board of Directors | 1982 – 1990 |
| Board of Directors | 1982 – 1998 |
| Board of Directors | 1994 – 1999 |
| Chairman | 1982 – 2000 |
| Board of Directors | 1982 – 1988 |
| Chairman | 1999 – 2002 |
| Board of Directors | 1994 – 1999 |
| Board of Directors | 1982 – 1998 |
| Board of Directors | 1982 – 1988 |