| Board of Directors | 1989 – 1995 |
| Board of Directors | 1989 – 1993 |
| Board of Directors | 1989 – 1993 |
| Board of Directors | 1989 – 1990 |
| Board of Directors | 2003 – 2006 |
| Board of Directors | 1997 – 1998 |
| Board of Directors | 2002 – 2006 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 1998 – 2002 |
| Chairman | 2002 – 2003 |
| Board of Directors | 1989 – 1989 |
| Board of Directors | 1995 – 1997 |
| Board of Directors | 1989 – 1994 |
| Board of Directors | 2006 – 2007 |
| Board of Directors | 1989 – 1995 |
| Board of Directors | 1989 – 1995 |
| Board of Directors | 1996 – 1998 |
| Chairman | 2006 – 2007 |
| Board of Directors | 1995 – 2002 |
| Board of Directors | 2006 – 2006 |
| Board of Directors | 1989 – 1996 |
| Board of Directors | 1989 – 1993 |
| Chairman | 1989 – 1989 |
| Board of Directors | 1989 – 1994 |
| Board of Directors | 1989 – 1995 |
| Board of Directors | 2002 – 2006 |
| Board of Directors | 1989 – 1992 |
| Board of Directors | 1995 – 1996 |
| Board of Directors | 1989 – 1992 |
| Board of Directors | 1989 – 1991 |
| Board of Directors | 1998 – 2002 |
| Board of Directors | 2006 – 2007 |