| Board of Directors | 1987 – 1992 |
| Board of Directors | 1987 – 1987 |
| Board of Directors | 1987 – 1990 |
| Board of Directors | 1987 – 2002 |
| Board of Directors | 1987 – 1993 |
| Board of Directors | 1987 – 1993 |
| Board of Directors | 1987 – 1991 |
| Board of Directors | 1987 – 1993 |
| Board of Directors | 1999 – 2000 |
| Board of Directors | 2003 – 2003 |
| Board of Directors | 1987 – 1999 |
| Board of Directors | 1987 – 1987 |
| Board of Directors | 1987 – 1990 |
| Board of Directors | 1987 – 2001 |
| Board of Directors | 1987 – 1994 |
| Board of Directors | 2001 – 2003 |
| Chairman | 1987 – 1987 |
| Board of Directors | 2000 – 2003 |