| Board of Directors | 1997 – 1997 |
| Board of Directors | 1988 – 1993 |
| Board of Directors | 1988 – 1989 |
| Board of Directors | 1988 – 1992 |
| Board of Directors | 1995 – 1997 |
| Board of Directors | 1988 – 1990 |
| Board of Directors | 1988 – 1997 |
| Board of Directors | 1988 – 1996 |
| Board of Directors | 1988 – 1995 |
| Board of Directors | 1996 – 1997 |
| Chairman | 1988 – 1989 |
| Board of Directors | 1988 – 1996 |
| Board of Directors | 1996 – 1997 |
| Board of Directors | 1988 – 1989 |