| Board of Directors | 1987 – 1996 |
| Board of Directors | 1987 – 1996 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 1987 – 1995 |
| Board of Directors | 1987 – 2007 |
| Board of Directors | 1987 – 1988 |
| Board of Directors | 1998 – 2005 |
| Board of Directors | 1987 – 2003 |
| Board of Directors | 1987 – 1989 |
| Chairman | 1987 – 2007 |
| Board of Directors | 1987 – 1992 |
| Chairman | 1987 – 1988 |
| Board of Directors | 2005 – 2007 |
| Board of Directors | 1987 – 1998 |
| Board of Directors | 1987 – 1992 |
| Board of Directors | 1987 – 1988 |
| Board of Directors | 1987 – 1996 |
| Board of Directors | 1995 – 1996 |